Warships of Italy: Regia Marina warships of the Second World War

Regia Marina warships of the Second World War

(USN Photo)

Italian aircraft carrier Aquila at anchor at La Spezia in June 1951. Aquila was Italy's first proper aircraft carrier project; it was however not built from the keel up as such, and was never completed. After conducting comparative flight trials, the Italians eventually settled on the Re.2001 as their standard carrier fighter/fighter-bomber.

Aquila (Eagle) was an Italian aircraft carrier converted from the transatlantic passenger liner SS Roma. During the Second World War, work on Aquila began in late 1941 at the Ansaldo shipyard in Genoa and continued for the next two years. With the signing of the Italian armistice on 8 September 1943, however, all work was halted and the vessel remained unfinished. She was captured by the National Republican Navy of the Italian Social Republic and the German occupation forces in 1943, but in 1945 she was partially sunk by a commando attack of Mariassalto, an Italian royalist assault unit of the Co-Belligerent Navy of the Kingdom of Italy, made up by members of the former Decima Flottiglia MAS. Aquila was eventually refloated and scrapped in 1952.

Aquila was nearing 90% completion and had passed her first static test when Italy surrendered to the Allies on 8 September 1943. Germany and its puppet state, the Italian Social Republic, then seized the ship and placed it under guard. However, because of the general poor military situation and the ongoing bombing attacks on her and the nearby naval infrastructure, work never resumed. Aquila was later damaged again on 16 June 1944, during an Allied air attack on Genoa. By that same year, the Germans had already started to loot the ship and partially dismantle her.Near the end of the war, the royalist Italian Co-belligerent Navy feared the Germans might use Aquila as a blockship to the entrance to Genoa harbor, just as they did with her sister ship, the converted aircraft carrier Sparviero (formerly the ocean liner Augustus) a few months prior. Mariassalto divers from the former Decima Flottiglia MAS then executed a daring sabotage operation on the night of the 18 and 19 April 1945, in which they partially sunk Aquila in a harmless location.Raised after the war, Aquila was towed to La Spezia in 1949 and renamed Pontone P227. Consideration was given to possibly completing her or converting her to other civilian uses, but this was deemed either too expensive or too politically problematic. She was eventually scrapped in 1952. (Wikipedia)

Aquila′s planned air complement was 51 non-folding Reggiane Re.2001 OR fighter-bombers: 41 stowed in the hangar deck (including 15 suspended from the deck head) and 10 on the flight deck in a permanent deck park. A folding-wing version of the Re.2001 was planned, which would have increased the size of Aquila′s air group to 66 aircraft, but this never materialized. Only 10 Re.2001s were fully converted for carrier use. They were given tail hooks, RTG naval radio equipment and bomb racks for carrying 650 kg (1,430 lb) of bombs. They were also armed with two 12.7 mm (0.5 in) Breda-SAFAT machine guns mounted above the engine cowling. At least one Re.2001G was under test at Perugia as a naval torpedo bomber and was given a lengthened tail wheel strut to accommodate the added height of a torpedo suspended below the fuselage. (Wikipedia)

Italian aircraft carrier Sparviero

Sparviero (Sparrowhawk) was an Italian aircraft carrier designed and built during the Second World War for the Regia Marina. She was originally the ocean liner MS Augustus built in 1926 for Navigazione Generale Italiana, but was transferred to the new Italian Line after the merger of Navigazione Generale Italiana with the Lloyd Sabaudo and the Cosulich Line. The conversion was started in 1942 originally under the name Falco but was never completed, and the ship was never delivered to the Regia Marina (Royal Italian Navy). She began to be scrapped in 1947, a process completed by 1951. (Wikipedia)

Italian battleships

Italian battleship Andrea Doria class

The Andrea Doria class (usually called Duilio class in Italian sources) was a pair of dreadnought battleships built for the Royal Italian Navy (Regia Marina) between 1912 and 1916. The two ships—Andrea Doria and Duilio—were completed during World War I. The class was an incremental improvement over the preceding Conte di Cavour class. Like the earlier ships, Andrea Doria and Duilio were armed with a main battery of thirteen 305-millimeter (12 in) guns.The two ships were based in southern Italy during the First World War to help ensure that the Austro-Hungarian Navy's surface fleet would be contained in the Adriatic. Neither vessel saw any combat during the conflict. After the war, they cruised the Mediterranean and were involved in several international incidents, including at Corfu in 1923. In 1933, both ships were placed in reserve. In 1937 the ships began a lengthy reconstruction. The modifications included removing their center main battery turret and boring out the rest of the guns to 320 mm (12.6 in), strengthening their armor protection, installing new boilers and steam turbines, and lengthening their hulls. The reconstruction work lasted until 1940, by which time Italy was already engaged in the Second World War.The two ships were moored in Taranto on the night of 11/12 November 1940 when the British launched a carrier strike on the Italian fleet. In the resulting Battle of Taranto, Duilio was hit by a torpedo and forced to beach to avoid sinking. Andrea Doria was undamaged in the raid; repairs for Duilio lasted until May 1941. Both ships escorted convoys to North Africa in late 1941, including Operation M42, where Andrea Doria saw action at the inconclusive First Battle of Sirte on 17 December. Fuel shortages curtailed further activities in 1942 and 1943, and both ships were interned at Malta following Italy's surrender in September 1943. Italy was permitted to retain both battleships after the war, and they alternated as fleet flagship until the early 1950s, when they were removed from active service. Both ships were scrapped after 1956.

The ships of the Andrea Doria class were 168.9 meters (554 ft 2 in) long at the waterline, and 176 meters (577 ft 5 in) overall. They had a beam of 28 meters (91 ft 10 in), and a draft of 9.4 meters (30 ft 10 in). They displaced 22,956 tonnes (22,593 long tons) at normal load, and 24,729 tonnes (24,338 long tons) at deep load.[2] They were provided with a complete double bottom and their hulls were subdivided by 23 longitudinal and transverse bulkheads. The ships had two rudders, both on the centerline. They had a crew of 31 officers and 969 enlisted men. (Wikipedia)

Battleship Andrea Doria

(USN Photo)

Italian battleship Andrea Doria surrendering at Malta on 9 September 1943.

Andrea Doria was the lead ship of her class of battleships built by the Regia Marina (Royal Navy). The class included only one sister ship, Duilio. Andrea Doria was named after the 16th-century Genoese admiral of the same name. Laid down in March 1912, the battleship was launched a year later in March 1913, and completed in March 1916. She was armed with a main battery of thirteen 305 mm (12 in) guns and had a top speed of 21 knots (39 km/h; 24 mph).Andrea Doria saw no major action in the First World War, and served extensively in Mediterranean in the 1920s and 1930s. She was involved in the suppression of rebels in Fiume and the Corfu incident in the 1920s. Starting in 1937, Andrea Doria underwent an extensive modernization, which lasted until 1940. She saw relatively little action during the Second World War; she was tasked with escorting convoys to Libya throughout 1941 and into 1942, during which she engaged in the inconclusive First Battle of Sirte. After the Armistice in September 1943 the ship was sailed to Malta and interned by the Allies. She remained there until 1944, when she was permitted to return to Italian ports. Andrea Doria survived the war and soldiered on in the post-war navy as a training ship until 1956. Paid off in September, she was formally stricken from the naval register on 1 November and sold for scrapping later that year. (Wikipedia)

Italian battleship Duilio

(Regia Marina Photo)

Duilio (often known as Caio Duilio) was an Italian Andrea Doria-class battleship that served in the Regia Marina during the First World War and the Second World War. She was named after the Roman fleet commander Gaius Duilius. Duilio was laid down in February 1912, launched in April 1913, and completed in May 1916. She was initially armed with a main battery of thirteen 305 mm (12.0 in) guns, but a major reconstruction in the late 1930s replaced these with ten 320 mm (13 in) guns. Duilio saw no action during the First World War owing to the inactivity of the Austro-Hungarian fleet during the conflict. She cruised the Mediterranean in the 1920s and was involved in the Corfu incident in 1923.

During the Second World War, she participated in numerous patrols and sorties into the Mediterranean, both to escort Italian convoys to North Africa and in attempts to catch the British Mediterranean Fleet. In November 1940, the British launched an air raid on Taranto; Duilio was hit by one torpedo launched by a Fairey Swordfish torpedo bomber, which caused significant damage. Repairs lasted some five months, after which the ship returned to convoy escort duties. A fuel shortage immobilized the bulk of the Italian surface fleet in 1942, and Duilio remained out of service until the Italian surrender in September 1943. She was thereafter interned at Malta until 1944, when the Allies permitted her return to Italian waters. She survived the war, and continued to serve in the post-war Italian navy, primarily as a training ship. Duilio was placed in reserve for a final time in 1953; she remained in the Italian navy's inventory for another three years before she was stricken from the naval register in late 1956 and sold for scrapping the following year. (Wikipedia)

Italian Conte di Cavour–class battleships

The Conte di Cavour–class battleships were a group of three dreadnoughts built for the Royal Italian Navy (Regia Marina) in the 1910s. The ships were completed during World War I. In December 1915, and January 1916, when the Serbian army was driven by the German foces under General von Mackensen toward the Albanian coast, 138,000 Serbian infantry and 11,000 refugees were ferried across the Adriatic and landed in Italy in 87 trips by the Conte di Cavour and other shps of the Italian Navy under the command of Admiral Conz. These ships also carried 13,000 cavalrymen and 10,000 horses of the Serbian army to Corfu in 13 crossings from the Albanian port of Vallons. Leonardo da Vinci was sunk by a magazine explosion in 1916 and sold for scrap in 1923. The two surviving ships, Conte di Cavour and Giulio Cesare, supported operations during the Corfu Incident in 1923. They were extensively reconstructed between 1933 and 1937 with more powerful guns, additional armour and considerably more speed than before.

Both ships participated in the Battle of Calabria in July 1940, when Giulio Cesare was lightly damaged. They were both present when British torpedo bombers attacked the fleet at Taranto in November 1940, and Conte di Cavour was torpedoed. She was grounded with most of her hull underwater and her repairs were not completed before the Italian surrender in September 1943. Conte di Cavour was scrapped in 1946. Giulio Cesare escorted several convoys, and participated in the Battle of Cape Spartivento in late 1940 and the First Battle of Sirte in late 1941. She was designated as a training ship in early 1942, and escaped to Malta after Italy surrendered. The ship was transferred to the Soviet Union in 1949 and renamed Novorossiysk. The Soviets also used her for training until she was sunk when a mine exploded in 1955. She was scrapped in 1957. (Wikipedia)

Italian battleship Conte di Cavour

(Regia Marina Photo)

Conte di Cavour was the name ship of the three Conte di Cavour-class dreadnought battleships built for the Royal Italian Navy (Regia Marina) in the 1910s. Completed in 1915 she served during the First World War, although she was little used and saw no combat. The ship supported operations during the Corfu Incident in 1923 and spent much of the rest of the decade in reserve. She was rebuilt between 1933 and 1937 with more powerful guns, additional armor and considerably more speed than before.During the Second World War, both Conte di Cavour and her sister ship, Giulio Cesare, participated in the Battle of Calabria in July 1940, where the latter was lightly damaged. Conte di Cavour was badly damaged when British torpedo bombers attacked the fleet at Taranto in November 1940. She was deliberately run aground, with most of her hull underwater, and repairs were not completed before the Italian armistice in September 1943. The ship was then captured by the Germans, but they made no effort to finish her repairs. She was damaged in an Allied air raid in early 1945 and capsized a week later. Conte di Cavour was eventually scrapped in 1946. (Wikipedia)

Italian battleship Giulio Cesare

(Regia Marina Photo)

Giulio Cesare was one of three Conte di Cavour-class dreadnought battleships built for the Royal Italian Navy (Regia Marina) in the 1910s. Completed in 1914, she was little used and saw no combat during the First World War. The ship supported operations during the Corfu Incident in 1923 and spent much of the rest of the decade in reserve. She was rebuilt between 1933 and 1937 with more powerful guns, additional armor and considerably more speed than before. During the Second World War, both Giulio Cesare and her sister ship, Conte di Cavour, participated in the Battle of Calabria in July 1940, when the former was lightly damaged. They were both present when British torpedo bombers attacked the fleet at Taranto in November 1940, but Giulio Cesare was not damaged. She escorted several convoys to North Africa and participated in the Battle of Cape Spartivento in late 1940 and the First Battle of Sirte in late 1941. She was designated as a training ship in early 1942, and escaped to Malta after the Italian armistice the following year. The ship was transferred to the Soviet Union in 1949 and renamed Novorossiysk (Новороссийск). The Soviets also used her for training until she was sunk in 1955, with the loss of 617 men, by an explosion most likely caused by an old German mine. She was salvaged the following year and later scrapped. (Wikipedia)

(Regia Marina Photo)

Giulio Cesare.

(Soviet Navy Photo)

Novorossiysk at anchor at Sevastopol, flying the Soviet jack in 1950.

After the war, Giulio Cesare was allocated to the Soviet Union as part of war reparations. She was moved to Augusta, Sicily, on 9 December 1948, where an unsuccessful attempt was made at sabotage. The ship was stricken from the naval register on 15 December and turned over to the Soviets on 6 February 1949 under the temporary name of Z11 in Vlorë, Albania.[30] She was renamed Novorossiysk, after the Soviet city of that name on the Black Sea. The Soviets used her as a training ship, and gave her eight refits. In 1953, all Italian light AA guns were replaced by eighteen 37 mm 70-K AA guns in six twin mounts and six singles. Also replaced were her fire-control systems and radars. This was intended as a temporary rearmament, as the Soviets drew up plans to replace her secondary 120mm mounts with the 130mm/58 SM-2 that was in development, and the 100mm and 37mm guns with 8 quadruple 45mm. While at anchor in Sevastopol on the night of 28/29 October 1955, an explosion ripped a 4-by-14-meter (13 by 46 ft) hole in the forecastle forward of 'A' turret. The flooding could not be controlled, and she capsized with the loss of 617 men, including 61 men sent from other ships to assist.The cause of the explosion is still unclear. The official cause, regarded as the most probable, was a magnetic RMH or LMB bottom mine, laid by the Germans during the Second World War and triggered by the dragging of the battleship's anchor chain before mooring for the last time. Subsequent searches located 32 mines of these types, some of them within 50 meters (160 ft) of the explosion. The damage was consistent with an explosion of 1,000–1,200 kilograms (2,200–2,600 lb) of TNT, and more than one mine may have detonated. (Wikipedia)

Leonardo da Vinci was the last of three Conte di Cavour-class dreadnoughts built for the Regia Marina (Royal Italian Navy) in the early 1910s. Completed just before the beginning of the First World War, the ship saw no action and was sunk by a magazine explosion in 1916 with the loss of 248 officers and enlisted men. The Italians blamed Austro-Hungarian saboteurs for her loss, but it may have been accidental. Leonardo da Vinci was refloated in 1919 and plans were made to repair her. Budgetary constraints did not permit this, and her hulk was sold for scrap in 1923.

Italian Littorio-class battleships

(RAF Photo)

The only known photograph of all three Littorio Battleships taken together by an RAF high speed high altitude photo reconnaissance aircraft.

The Littorio class, also known as the Vittorio Veneto class, was a class of battleship of the Regia Marina, the Italian navy. The class was composed of four ships—Littorio, Vittorio Veneto, Roma, and Impero—but only the first three ships of the class were completed. Built between 1934 and 1942, they were the most modern battleships used by Italy during the Second World War. They were developed in response to the French Dunkerque-class battleships, and were armed with 381-millimeter (15 in) guns and had a top speed of 30 knots (56 km/h; 35 mph). The class's design was considered by the Spanish Navy, but the outbreak of the Second World War interrupted construction plans.The first two ships, Littorio and Vittorio Veneto, were operational by the early months of Italy's participation in the Second World War. They formed the backbone of the Italian fleet, and conducted several sorties into the Mediterranean to intercept British convoys, though without any notable success. The two ships were repeatedly torpedoed throughout their careers: Littorio was hit by a torpedo during the attack on Taranto in November 1940 and again in June 1942; Vittorio Veneto was torpedoed during the Battle of Cape Matapan in March 1941 and while escorting a convoy to North Africa in September 1941. Roma joined the fleet in June 1942, although all three ships remained inactive in La Spezia until June 1943, when all three were damaged in a series of Allied air attacks on the harbour.In September 1943, Italy capitulated and signed an Armistice with the Allies. Littorio was then renamed Italia. The three active battleships were transferred to Malta before they were to be interned in Alexandria. While en route to Malta, German bombers attacked the fleet with Fritz X radio-guided bombs, damaging Italia and sinking Roma. Nevertheless, Italia and Vittorio Veneto reached Malta and were interned. The incomplete Impero was seized by the Germans after Italy withdrew from the war and used as a target, until she was sunk by American bombers in 1945. Italia and Vittorio Veneto were awarded to the United States and Britain, respectively, as war prizes. Italia, Vittorio Veneto, and Impero were broken up for scrap between 1952 and 1954. (Wikipedia)

Italian battleship Littorio

(Regia Marina Photo)

Vittorio Veneto and Littorio. La Spezia, March 1943.

Littorio was the lead ship of her class of battleship; she served in the Italian Regia Marina (Royal Navy) during the Second World War. She was named after the Lictor ("Littorio" in Italian), in ancient times the bearer of the Roman fasces, which was adopted as the symbol of Italian Fascism. Littorio and her sister ship Vittorio Veneto were built in response to the French battleships Dunkerque and Strasbourg. They were Italy's first modern battleships, and the first 35,000-ton capital ships of any nation to be laid down under the terms of the Washington Naval Treaty. Littorio was laid down in October 1934, launched in August 1937, and completed in May 1940.Shortly after her commissioning, Littorio was badly damaged during the British air raid on Taranto on 11 November 1940, which put her out of action until the following March. Littorio thereafter took part in several sorties to catch the British Mediterranean Fleet, most of which failed to result in any action, the notable exception being the Second Battle of Sirte in March 1942, where she damaged several British warships. Littorio was renamed Italia in July 1943 after the fall of the Fascist government. On 9 September 1943, the Italian fleet was attacked by German bombers while it was on its way to internment after Italy's capitulation to the Allies. During the German attack, which saw the destruction of her sister Roma, Italia herself was hit by a Fritz X radio-controlled bomb, causing significant damage to her bow. As part of the armistice agreement, Italia was interned at Malta, Alexandria, and finally in the Great Bitter Lake in the Suez Canal, where she remained until 1947. Italia was awarded to the United States as a war prize and scrapped at La Spezia in 1952–54. (Wikipedia)

Italian battleship Vittorio Veneto

(Regia Marina Photo)

Vittorio Veneto was the second member of the Littorio-class battleship that served in the Italian Regia Marina (Royal Navy) during the Second World War. The ship's keel was laid down in October 1934, launched in July 1937, and readied for service with the Italian fleet by August 1940. She was named after the Italian victory at Vittorio Veneto during World War I, and she had three sister ships: Littorio, Roma, and Impero, though only Littorio and Roma were completed during the war. She was armed with a main battery of nine 381-millimeter (15.0 in) guns in three triple turrets, and could steam at a speed of 30 knots (56 km/h; 35 mph).Vittorio Veneto saw extensive service during the war. The ship escaped undamaged during the British raid on Taranto in November 1940. Early in the war, she participated in the Battle of Cape Spartivento in November 1940 and the Battle of Cape Matapan in March 1941 where she was damaged by a torpedo bomber, and then she was torpedoed by the British submarine HMS Urge in December 1941. She spent 1941 and early 1942 attempting to attack British convoys to Malta, but crippling fuel shortages in the Italian fleet curtailed activity thereafter. Vittorio Veneto was among the Italian ships that were surrendered to the Allies in September 1943 after Italy withdrew from the war, and Vittorio Veneto with the rest of the Italian fleet was taken into internment, spending the following three years under British control in Egypt. After the war, she was allocated as a war prize to Britain and subsequently broken up for scrap. (Wikipedia)

(Regia Marina Photo)

Vittorio Veneto.

Italian battleship Roma

(Regia Marina Photo)

Roma, named after two previous ships and the city of Rome, was the third Littorio-class battleship of Italy's Regia Marina (Royal Navy). The construction of both Roma and her sister ship Impero was due to rising tensions around the world and the navy's fear that only two Littorios, even in company with older pre-First World War battleships, would not be enough to counter the British and French Mediterranean fleets in case of a possible Franco-British alliance. As Roma was laid down almost four years after the first two ships of the class, some small improvements were made to the design, including additional freeboard added to the bow.Roma was commissioned into the Regia Marina on 14 June 1942, but a severe fuel shortage in Italy at that time prevented her from being deployed; instead, along with her sister ships Vittorio Veneto and Littorio, she was used to bolster the anti-aircraft defenses of various Italian cities. In this role, she was severely damaged twice in June 1943, from bomber raids on La Spezia. After repairs in Genoa through all of July and part of August, Roma was deployed as the flagship of Admiral Carlo Bergamini in a large battle group that eventually comprised the three Littorios, eight cruisers and eight destroyers. The battle group was scheduled to attack the Allied ships approaching Salerno to invade Italy (Operation "Avalanche") on 9 September 1943, but the news of the 8 September 1943 armistice with the Allies led to the operation being cancelled. The Italian fleet was instead ordered to sail to La Maddalena (Sardinia) and subsequently to Malta to surrender to the Allies.

While the force was in the Strait of Bonifacio, Dornier Do 217s of the German Luftwaffe's Kampfgeschwader 100, armed with Fritz X radio-controlled bombs, sighted the force. The first attack failed, but the second dealt Italia (ex-Littorio) and Roma severe damage. The hit on Roma caused water to flood two boiler rooms and the aft engine room, leaving the ship to limp along with two propellers, reduced power, and arc-induced fires in the stern of the ship. Shortly thereafter, another bomb slammed into the ship and detonated within the forward engine room, causing catastrophic flooding and the explosion of the number two main turret's magazines, throwing the turret itself into the sea. Sinking by the bow and listing to starboard, Roma capsized and broke in two, carrying 1,393 men—including Bergamini—down with her. (Wikipedia)

(Regia Marina Photo)

Italian battleship Roma underway prior to 9 September 1943.

(Regia Marina Photo)

Italian battleship Roma being completed in Monfalcone.

Italian battleship Impero

Impero was the fourth Littorio-class battleship built for Italy's Regia Marina (Royal Navy) during the Second World War. She was named after the Italian word for "empire", in this case referring to the newly (1936) conquered Italian Empire in East Africa (Somaliland, Eritrea and Ethiopia territories) as a result of the Second Italo-Abyssinian War. She was constructed under the order of the 1938 Naval Expansion Program, along with her sister ship Roma.Impero was laid down in May 1938 and launched in November 1939. The entrance of Italy into the Second World War forced the Regia Marina to refocus its construction priorities on escort warships, so Impero was left incomplete. After Italy surrendered to the Allies on 8 September 1943, the rest of the Italian Navy steamed to Sardinia to rendezvous with their American contemporaries. Still incomplete in Trieste, Impero was captured by the Germans, who used the hulk for target practice. Sunk by Allied bombers in February 1945, she was refloated in 1947 and scrapped in Venice from 1948 to 1950. (Wikipedia)

Italian cruiser Alberico da Barbiano

(Regia Marina Photo)

Alberico da Barbiano was an Italian Giussano-class light cruiser, that served in the Regia Marina during the Second World War. She was named after Alberico da Barbiano, an Italian condottiero of the 14th century.

During the Second World War, Alberico Da Barbiano was part of the 4th Cruiser Division. On 9 July 1940 Da Barbiano was present at the Battle of Calabria (Punto Stilo). In summer 1940 she also participated in some escort and minelaying missions between Italy and North Africa. Due to the weakness of the class, on 1 September 1940 she was assigned as a training ship in Pola, but on 1 March 1941 was returned to active service.In December 1941 the Italian naval staff, in the face of a deteriorating supply situation between Italy and Libya, decided to use the 4th Cruiser Division, then composed of Da Barbiano (flagship of ammiraglio di divisione Antonino Toscano, the commander of the Division) and her sister ship Alberto di Giussano, for an urgent transport mission to North Africa.Da Barbiano and Di Giussano left Taranto at 8:15 on 5 December 1941, reached Brindisi at 17:50 and there loaded about 50 tons of supplies, then proceeded to Palermo on 8 December, where they loaded an additional 22 tons of aviation fuel, which was especially needed in Libya (otherwise, aircraft based there would soon become unable to escort incoming convoys with vital supplies). The fuel, contained in unsealed barrels, was placed on the stern deck, thus posing great danger in case of enemy attacks (not only it would be set afire by mere strafing, but even by the flames of the ships' own guns, thus preventing the use of the stern turrets).

The two cruisers sailed unescorted from Palermo at 17:20 on 9 December, heading for Tripoli, but at 22:56 they were spotted by a British reconnaissance plane north of Pantelleria. The plane, which had located Toscano's ships thanks to Ultra intercepts, started to shadow them.[2] At 23:55 Toscano (who was at that time in the middle of the Sicilian Channel), since the surprise (required for the success of the mission) had vanished, heavy enemy radio traffic foreshadowed upcoming air strikes, and worsening sea conditions would delay his ships, further exposing them to British attacks, decided to turn back to base. Da Barbiano and Di Giussano reached Palermo at 8:20 on 10 December, after overcoming a British air attack off Marettimo. Toscano was heavily criticized by Supermarina for his decision to abort the mission.As for 13 December a new convoy operation, called M. 41, was planned, and the air cover by aircraft based in Libya would only be possible if they received new fuel, on 12 December it was decided that the 4th Division would attempt again the trip to Tripoli. The cruiser Giovanni delle Bande Nere was to join Da Barbiano and Di Giussano to carry more supplies, but she was prevented from sailing by a breakdown, thus her cargo had to be transferred to the other two cruisers. Da Barbiano and Di Giussano were overall loaded with 100 tons of aviation fuel, 250 tons of gasoline, 600 tons of naphtha and 900 tons of food stores, as well as 135 ratings on passage to Tripoli. As the stern of Da Barbiano (and, to a lesser extent, Di Giussano) was packed with fuel barrels, so thickly that it was not possible anymore to bring the guns to bear, Toscano held a last assembly with his staff and officers from both ships, where it was decided that, in case of encounter with enemy ships, the barrels would be discarded overboard, and then the cruisers would open fire (otherwise, the fuel would have been set afire by the firing of the cruisers' own guns).

Da Barbiano, Di Giussano and their only escort, the torpedo boat Cigno (a second torpedo boat, Climene, was left in the port due to a breakdown), sailed from Palermo at 18:10 on 12 December.[2] The 4th Division was ordered to pass northwest of the Aegadian Islands and then head for Cape Bon and follow the Tunisian coast; the ships would keep a speed of 22-23 knots (not more, because they were to spare part of their own fuel and deliver it at Tripoli).[2] Air cover, air reconnaissance and defensive MAS ambushes were planned to safeguard the mission.The British 4th Destroyer Flotilla, consisting of the destroyers HMS Sikh, HMS Maori, HMS Legion, and the Dutch destroyer HNLMS Isaac Sweers, (Commander G. H. Stokes), had departed Gibraltar on 11 December, to join the Mediterranean Fleet at Alexandria. By 8 December, the British had de-coded Italian C-38 wireless signals about the Italian supply operation and its course for Tripoli. The RAF sent a Wellington bomber on a reconnaissance sortie to sight the ships as a deception and on 12 December, the 4th Destroyer Flotilla, heading east from Gibraltar towards the Italian ships, was ordered to increase speed to 30 knots (56 km/h; 35 mph) and intercept.

In the afternoon of 12 December, a CANT Z. 1007 bis of Regia Aeronautica spotted the four destroyers heading east at an estimated speed of 20 knots, 60 miles (97 km) off Algiers; Supermarina was immediately informed but calculated that, even in the case the destroyers would increase their speed to 28 knots, they would have reached Cape Bon around 3:00 AM on 13 December, about one hour after the 4th Division, so Toscano (who learned of the sighting while he was still in harbour) was not ordered to increase speed or alter course to avoid them. Following new Ultra decodes, a new reconnaissance plane was sent and spotted Toscano's ships at sunset on 12 December, after which the 4th Destroyer Flotilla was directed to intercept the two cruisers, increasing speed to 30 knots. This speed, along with a one-hour delay that the 4th Division had accrued (and that Toscano omitted to report to Supermarina), frustrated all previous Supermarina calculations about the advantage that the 4th Division would have. At 22:23 Toscano was informed that he would possibly meet "enemy steamers coming from Malta", and at 23:15 he ordered action stations.The 4th Destroyer Flotilla sighted the Italian cruisers near Cap Bon, at 02:30 on 13 December.

At 2:45 on 13 December, seven miles off Cape Bon, the Italian ships heard the noise of a British plane (a radar-equipped Vickers Wellington, which located the ships and informed Stokes about their position), and at 3:15 they altered course to 157° to pass about one mile off Cape Bon. Five minutes later, Toscano suddenly ordered full speed ahead and to alter course to 337°, effectively reversing course; this sudden change disrupted the Italian formation, as neither Cigno (which was about two miles ahead of the cruisers) neither Di Giussano (which was following Da Barbiano in line) received the order, and while Di Giussano saw the flagship reverse course and imitated her (but remained misaligned), Cigno did not noticed the change till 3:25, when she also reversed course, but remained much behind the two cruisers. The reasons for Toscano's decision of reverse course have never been fully explained: it has been suggested that, upon realizing that he had been spotted by aircraft, he decided to turn back like on 9 December (but in this case, a course towards the Aegadian islands would have made more sense, instead that the northwesterly course ordered by Toscano; and the change was suddenly ordered more than 30 minutes after the cruisers had been spotted); that he wanted to mislead the reconnaissance plane about his real course, wait for it to go away, and then go back on the previous course to Tripoli; that he thought from the noise that torpedo bombers were coming, and he wanted to get in more open waters (farther away from the shore and the Italian minefields) to obtain more freedom of manoeuvre; or that he had spotted the Allied destroyers astern and, not wanting to present his stern to them (as the aft turrets were unusable and most fuel was stowed there), he decided to reverse course to fire on them with his bow turrets (upon ordering the change of course, he also ordered the gunners to keep ready).

Stokes's destroyers were, indeed, just off Cape Bon by then, and they had spotted the Italian ships. Arriving from astern, under the cover of darkness and using radar, the British ships sailed close inshore and surprised the Italians who were further out to sea, by launching torpedoes from short range. The course reversal accelerated the approach between the two groups, and the Allied destroyers attacked together; Sikh fired her guns and four torpedoes against Da Barbiano (the distance was less than 1,000 meters) and Legion did the same, while Maori and Isaac Sweers attacked Di Giussano. Toscano ordered full speed and to open fire (and also, to Di Giussano, to increase speed to 30 knots) and Da Barbiano also started a turn to port (on orders from the ship's commanding officer, Captain Giorgio Rodocanacchi), but at 3:22, before her guns were able to fire (only some machine guns managed to), the cruiser was hit by a torpedo below the forwardmost turret, which caused her to list to port.

Da Barbiano was then raked with machine gun fire, which killed or wounded many men and set fire to the fuel barrels, and hit by a second torpedo in the engine room. At 3.26 Maori also fired two torpedoes at Da Barbiano, and opened fire with her guns, hitting the bridge. Moments after, the cruiser was hit by another torpedo in the stern (possibly launched by Legion); meanwhile, Di Giussano was disabled as well. Da Barbiano rapidly listed to port, while the fires quickly spread all over the ship and also into the sea, fueled by the floating fuel, and the crew started to abandon ship. At 3:35, Da Barbiano capsized and sank in a sea of flame. 534 men, including Admiral Antonino Toscano, the commander of Italian Fourth Naval Division, his entire staff and the commanding officer of Alberico Da Barbiano, Captain Giorgio Rodocanacchi, were lost with the ship. 250 survivors reached the Tunisian coast or were picked up by rescuing vessels. (Wikipedia)

Italian cruiser Alberto di Giussano

(Regia Marina Photo)

Alberto di Giussano (named after Alberto da Giussano, a fictional[2] medieval military leader condottiero) was an Italian Giussano-class cruiser, which served in the Regia Marina during the Secobnd World War. She was launched on 27 April 1930.She participated in the normal peacetime activities of the fleet in the 1930s as a unit of the 2nd Squadron, including service in connection with the Spanish Civil War. On 10 June 1940 she was part of the 4th Cruiser Division, with the 1st Squadron, together with her sister ship Alberico da Barbiano and was present at the Battle of Punta Stilo in July. She carried out a minelaying sortie off Pantelleria in August, and for the rest of the year acted as distant cover on occasions for troop and supply convoys to North Africa.On 12 December 1941 she left port together with her sister ship Alberico da Barbiano. Both she and her sister were being used for an emergency convoy to carry gasoline for the German and Italian mobile formations fighting with the Afrika Korps. Jerrycans and other metal containers filled with gasoline were loaded onto both cruisers and were placed on the ships' open decks. The thinking behind using these two cruisers for such a dangerous mission was that their speed would act as a protection. Nonetheless, the ships were intercepted by four Allied destroyers guided by radar on 13 December 1941, in the Battle of Cape Bon. Alberto di Giussano was able to fire only three salvos before being struck by a torpedo amidships and hit by gunfire, which left her disabled and dead in the water. After vain struggle to halt the fire, the crew had to abandon the ship, which broke in two and sank at 4.22. 283 men out of the 720 aboard lost their lives. The ship's commanding officer, Captain Giovanni Marabotto, was among the survivors. (Wikipedia)

Italian cruiser Armando Diaz

(State Library of Victoria Photo)

Armando Diaz was a light cruiser of the Condottieri class and the sister-ship of the Luigi Cadorna. She served in the Regia Marina during the Second World War. She was built by OTO, La Spezia, and named after Armando Diaz, an Italian Field Marshal of the First World War.She was launched on 29 April 1933 and served in the Mediterranean after her completion. From 1 September 1934 until February 1935 she made a cruise to Australia and New Zealand.During the Spanish Civil War she served in the western Mediterranean and was based at Palma de Mallorca and Melilla. In July 1940, she was present at the Battle of Calabria, also called the battle of Punta Stilo. In October she took part in a mission to Albania, and in December she came under direct orders of Supermarina (Naval Headquarters) for special duties in connection with the protection of traffic to Albania from January 1941. However, the following month an important supply convoy to Tripoli required her use for cover, in company with the light cruiser Giovanni dalle Bande Nere and some destroyers.In the course of this operation the ship was torpedoed and sunk by the British submarine HMS Upright off the Kerkennah Islands in the early hours of 25 February. It took the Italian cruiser only six minutes to sink after her magazine detonated, with the loss of 484 men. (Wikipedia)

(Regia Marina Photo)

Italian light cruiser Armando Diaz on a visit to Sydney, Australia, 27 October 1934.

Italian cruiser Bari

(Regia Marina Photo)

SMS Pillau was a light cruiser of the Imperial German Navy. The ship, originally ordered in 1913 by the Russian navy under the name Maraviev Amurskyy, was launched in April 1914 at the Schichau-Werke shipyard in Danzig (now Gdańsk, Poland). However, due to the outbreak of World War I in August 1914, the incomplete ship was confiscated by Germany and renamed SMS Pillau for the East Prussian port of Pillau (now Baltiysk, Russia). Pillau was commissioned into the German Navy in December 1914. She was armed with a main battery of eight 15 cm SK L/45 (5.9-inch) guns and had a top speed of 27.5 kn (50.9 km/h; 31.6 mph). One sister ship was built, Elbing.After the end of the First World War, Pillau was ceded to Italy as a war prize in 1920. Renamed Bari, she was commissioned in the Regia Marina (Royal Navy) in January 1924. She was modified and rebuilt several times over the next two decades. In the early years of the Second World War, she provided gunfire support to Italian troops in several engagements in the Mediterranean. In 1943, she was slated to become an anti-aircraft defense ship, but while awaiting conversion, she was sunk by USAAF bombers in Livorno in June 1943. The wreck was partially scrapped by the Germans in 1944, and ultimately raised for scrapping in January 1948. (Wikipedia)

Italian cruiser Bartolomeo Colleoni

(Regia Marina Photo)

Bartolomeo Colleoni was an Italian Giussano-class light cruiser, that served in the Regia Marina (Royal Navy) during the Second World War. She was named after Bartolomeo Colleoni, an Italian military leader of the 15th century. She was sunk at the Battle of Cape Spada early in the war.

Bartolomeo Colleoni and Giovanni delle Bande Nere left Tripoli on the evening of 17 July and sailed to the north of Crete, bound for the Aegean. On the 19th, the four British destroyers HMS Hyperion, Ilex, Hero, and Hasty were sent on an anti-submarine patrol in the area, while the Australian light cruiser HMAS Sydney and the British destroyer Havock searched the Gulf of Athens. At around 06:00 on 19 July, the Italians spotted the four British destroyers off Cape Spada of western Crete, which were some 17,000 m (19,000 yd) away; Sydney and Havock were around 60 nautical miles (110 km; 69 mi) to the north. The British ships immediately signaled Sydney and turned to flee at high speed. The Italian commander, Rear Admiral Ferdinando Casardi aboard Giovanni delle Bande Nere, ordered his ships to pursue the retreating British ships, believing them to be part of the escort for a convoy he hoped to attack. At 06:27, the Italian cruisers opened fire on the destroyers, but the faster destroyers were able to pull out of range without having been hit.

At around this time, a Greek freighter passed between the formations but quickly withdrew from the area.Casardi pursued the British blindly, deciding not to launch any of his reconnaissance aircraft (both because of the sea state and not wanting to slow down to launch them), and he was also not supported by any land based aircraft in the area. As a result, they had no way to know that Sydney was in the area, and when she arrived on the scene at around 07:30 and opened fire, it took the Italians completely by surprise. The Australian cruiser had opened fire from a range of about 12,000 m (13,000 yd) while in the middle of a fog bank; almost immediately, she hit Giovanni delle Bande Nere near her aft funnel. The Italian cruisers quickly returned fire, but had difficulty locating the target in the fog, as they only had Sydney's muzzle flashes to aim at. They also rolled badly in the heavy seas, which further hampered their gun laying.

Captain Collins of Sydney detached Havock to join the other destroyers, Collins ordered to make a torpedo attack on the cruisers. Casardi responded by turning his ships south and then southwest to move to less restricted waters further from Crete. As the Italians withdrew, Sydney alternated fire between the two cruisers, depending on which was more visible, but she focused her fire on Bartolomeo Colleoni, as she was generally closer.At 08:24, Sydney struck Bartolomeo Colleoni with a salvo of 152 mm shells; one of the rounds jammed her rudder in the neutral position. The ship was now unable to steer, but she remained on the course she had been steaming. Shortly thereafter, another salvo from Sydney hit the ship amidships, causing extensive damage and starting several fires. One shell struck her conning tower and killed much of the bridge crew. The ship lost speed, which allowed the British destroyers to come into range. Further hits disabled two of the boilers and destroyed the main steam condenser, which was used to feed water back into the boilers. Without water to boil, the engines quickly shut down, leaving Bartolomeo Colleoni dead in the water. The ammunition hoists for her main battery guns were also disabled. Her 100 mm guns kept firing, as they could be operated manually. Within six minutes of the first hit, the ship had been effectively neutralized and Captain Umberto Novaro issued the order to abandon ship.At about that time, Ilex and Havock closed to launch torpedoes at the stricken cruiser, though their initial attacks missed. Hyperion joined the two destroyers, which had launched a further round of torpedoes, one of which hit Bartolomeo Colleoni. The torpedo, from Ilex, struck forward and blew off the first 30 m (98 ft) of her bow.

Casardi circled back at 08:50 to attempt to come to her aid, but quickly determined that the situation was hopeless, so he turned back to the west and fled at high speed.[18] Hyperion then launched a torpedo that struck amidships. The second hit caused serious flooding, and Bartolomeo Colleoni quickly capsized and sank. Sydney, Hero, and Hasty continued the pursuit of Giovanni delle Bande Nere, but Ilex, Havock, and Hyperion approached the area that survivors from Bartolomeo Colleoni were floating. They picked up 525 men, of whom eight died of their wounds and were buried at sea. The British had to suspend rescue efforts when Italian bombers appeared and attacked the ships. A further fifty men attempted to swim to the coast of Crete, but only seven survived to be picked up by a Greek fishing boat. Four more men, including captain Novaro, died aboard hospital ship Maine at Alexandria, Egypt. These men were buried there, and the captains of Sydney and the destroyers served as the pallbearers. In total, 121 out of a crew of 643 were killed in the sinking. (Wikipedia)

Italian cruiser Bolzano

(Regia Marina Photo)

Bolzano was a unique heavy cruiser, sometimes considered to be a member of the Trento class, built for the Italian Regia Marina (Royal Navy) in the early 1930s, the last vessel of the type to be built by Italy. A modified version of the earlier Trento class, she had a heavier displacement, slightly shorter length, a newer model of 203 mm (8 in) gun, and a more powerful propulsion system, among other differences influenced by the Zara class that had followed the Trentos. Bolzano was built by the Gio. Ansaldo & C. between her keel laying in June 1930 and her commissioning in August 1933.Bolzano had a fairly uneventful peacetime career, which primarily consisted of naval reviews for Italian and foreign dignitaries. She saw extensive action in the first three years of Italy's participation in the Second World War. She took part in the Battles of Calabria, Taranto, Cape Spartivento, and Cape Matapan. The ship was lightly damaged at Calabria, but she emerged from the other engagements unscathed. She also frequently escorted convoys to North Africa in 1941 and 1942 and patrolled for British naval forces in the central Mediterranean Sea.

Bolzano was torpedoed twice by British submarines; the first, in July 1941, necessitated three months of repairs. The second, in August 1942, caused extensive damage and ended the ship's career. She was eventually towed back to La Spezia, where repairs were to be completed. Resources were unavailable, however, and Bolzano remained there, out of action. Plans to convert her into a hybrid cruiser-aircraft carrier came to nothing for the same reason. After Italy surrendered to the Allies in September 1943, La Spezia was occupied by German forces; to prevent them from using her as a blockship, Italian and British frogmen sank Bolzano using Chariot manned torpedoes in June 1944. The Italian Navy ultimately raised the ship in September 1949 and broke her up for scrap. (Wikipedia)

(Regia Marina Photo)

Italian cruiser Bolzano.

Capitani Romani-class cruiser

The Capitani Romani class was a class of light cruisers acting as flotilla leaders for the Regia Marina (Italian Navy). They were built to outrun and outgun the large new French destroyers of the Le Fantasque and Mogador classes. Twelve hulls were ordered in late 1939, but only four were completed, just three of these before the Italian armistice in 1943. The ships were named after prominent ancient Romans (Capitani Romani), (Roman Captains).

Italian cruiser Attilio Regolo

(Regia Marina Photo)

Atillio Regolo was commissioned in August 1942 in Livorno. She was torpedoed by the submarine HMS Unruffled on 7 November 1942, and remained in drydock for several months with her bow shattered. She was interned in Port Mahon in the island of Menorca, Spain, after the armistice on 9 September 1943. In Italian service, the ship was named Attilio Regolo after Marcus Atilius Regulus the Roman statesman and general who was a consul of the Roman Republic in 267 BC and 256 BC.After the Peace Treaty on 10 February 1947, she and her sister ship Scipione Africano were transferred to France as war reparations (Scipione Africano was renamed Guichen). The ships were extensively rebuilt for the French Navy by La Seyne dockyard with new anti-aircraft-focused armament and fire-control systems in 1951–1954. Chateaurenault (D 606) was a French Capitani Romani-class light cruiser, acquired as war reparations from Italy in 1947 which served in the French Navy from 1948 to 1961. She was named in honour of François Louis de Rousselet, Marquis de Châteaurenault. (Wikipedia)

Italian San Giorgio-class cruisers

The San Giorgio class was a class of two destroyers of the Italian Navy. They entered service in 1955, with the last one being decommissioned in 1980. Formerly Capitani Romani-class cruisers of the Regia Marina (Royal Italian Navy) during the Second World War, they were rebuilt as destroyers during the Cold War. San Giorgio (ex Pompeo Magno) was the first to enter service in 1955 and was modified again from 1963 to 1965 to become a training ship until 1980. San Marco (ex Giulio Germanico) was scuttled by the Germans after the incomplete ship fell into German hands following the Italian Armistice. Following the war, the vessel was raised, rebuilt and renamed and entered service in 1956. San Marco served until 1971. (Wikipedia)

Italian cruiser Giulio Germanico

(Regia Marina Photo)

Giulio Germanico was captured by the Germans in Castellammare di Stabia while under completion, and scuttled by them on 28 September 1943. She was raised and completed for the Italian Navy after the war. Renamed San Marco, she served as a destroyer leader until her decommission in 1971. Giulio Germanico cruiser

Giulio Germanico was built in the Royal Shipyard of Castellammare di Stabia. Laid down in 1939 and launched in 1941, the cruiser was completing the set-up when the armistice of 8 September was signed. Falling into the hands of the Germans who had taken control of the shipyard, the ship was scuttled when the following 28 September the German occupation troops left the city. After the war the hull of Giulio Germanico was recovered in the port of Castellammare and marked the designation FV 2. Given the good overall condition of the hull in 1950 it was decided to rebuild the ship as a destroyer and renamed San Marco. Once the work was completed, the ship entered service in the Italian Navy on 1 January 1956 with the pennant number D 563, serving until 1971 when it was disarmamed.

Pompeo Magno cruiser

(Regia Marina Photo)

Pompeo Magno entered service in the Regia Marina (Royal Italian Navy) in 1943 shortly before the armistice. After removal from the Navy list it was marked by the designation FV 1. In 1950 it was chosen for reconstruction as a destroyer and renamed San Giorgio. Once the work was completed, the ship entered service in the Italian Navy on 1 July 1955 with the pennant number D 562. From 1963 and until 1965, San Giorgio was again subjected to modification works at the Arsenal of La Spezia to be transformed into a training ship for the students of the Naval Academy of Livorno, carrying out this task until it was disarmed in 1980.

Italian Capitani Romani-class light cruisers

The Capitani Romani class was a class of light cruisers acting as flotilla leaders for the Regia Marina (Italian Navy). They were built to outrun and outgun the large new French destroyers of the Le Fantasque and Mogador classes. Twelve hulls were ordered in late 1939, but only four were completed, just three of these before the Italian armistice in 1943. The ships were named after prominent ancient Romans (Capitani Romani). The Capitani Romani class were originally designed as scout cruisers for ocean operations ("ocean scout", esploratori oceanici), although some authors consider them to have been heavy destroyers.

(Regia Marina Photo)

Italian light cruiser Scipione Africano

Scipione Africano was an Italian Capitani Romani-class light cruiser, which served in the Regia Marina during the Second World War. As she was commissioned in the spring of 1943, the majority of her service took place on the side of the Allies - 146 wartime missions after the Armistice of Cassibile versus 15 before. She remained commissioned in the Italian navy after the war, until allocated to France as war reparations by the Paris Peace Treaties of 1947. Scipione Africano was decommissioned from the Marina Militare in August 1948 and subsequently commissioned into the Marine Nationale as Guichen, after briefly being known as S.7.Scipione Africano was named after Publius Cornelius Scipio Africanus, the Roman general and later consul. Her name under French service was in honour of Luc Urbain de Bouëxic, comte de Guichen. (Wikipedia)

Uncompleted Capitani Romani–class cruisers

Caio Mario. Captured by the Germans in La Spezia, with only the hull completed; used as a floating oil tank and scuttled in 1944.

Claudio Druso, Nero Claudius Drusus; scrapped between 1941 and February 1942.

Claudio Tiberio Emperor Tiberius; scrapped between November 1941 and February 1942.

Cornelio Silla Lucius Cornelius Sulla. Captured by the Germans in Genoa while fitting out; sunk in an air raid in July 1944.

Ottaviano Augusto Emperor Augustus. Captured by the Germans in Ancona while under completion; sunk in an air attack on 1 November 1943.

Paolo Emilio Lucius Aemilius Paullus Macedonicus; scrapped between October 1941 and February 1942.

Ulpio Traiano Emperor Trajan. Sunk 3 January 1943 by British human torpedo attack while fitting out in Palermo.

Vipsanio Agrippa Marcus Vipsanius Agrippa; scrapped between July 1941 and August 1942.

Italian cruiser Cattaro

(Bundesarchiv, Bild 101I-185-0116-27A)

Yugoslavian cruiser Dalmacija (ex. German Niobe, later used by the Italians as Cattaro, then by the Germans as Niobe) and minelayer Mljet and Meljine (left)

Cattaro was initially the German SMS Niobe, the second of ten Gazelle-class light cruisers that were built for the German Kaiserliche Marine ('Imperial Navy') in the late 1890s and early 1900s. In 1925, Germany sold the ship to the Kingdom of Serbs, Croats and Slovenes (later Yugoslavia). There, she was renamed Dalmacija and served in the Royal Yugoslav Navy until April 1941, when she was captured by the Italians during the Axis invasion of Yugoslavia. Renamed Cattaro, she served in the Italian Regia Marina (Royal Navy) until the Italian surrender in September 1943. She was then seized by the German occupiers of Italy, who restored her original name. She was used in the Adriatic Sea briefly until December 1943, when she ran aground on the island of Silba, and was subsequently destroyed by British motor torpedo boats. The wreck was ultimately salvaged and broken up for scrap between 1947 and 1952. (Wikipedia)

Condottieri-class cruiser

The Condottieri class was a sequence of five light cruiser classes of the Regia Marina (Italian Navy), although these classes show a clear line of evolution. They were built before the Second World War to gain predominance in the Mediterranean Sea. The ships were named after condottieri (military commanders) of Italian history.

Alberto di Giussano.

Alberico da Barbiano.

Bartolomeo Colleoni.

(Regia Marina Photo)

Giovanni delle Bande Nere.

(Regia Marina Photo)

Luigi Cadorna.‍

Armando Diaz.

(State Library of Victoria Photo)

Raimondo Montecuccoli.

Muzio Attendolo.

Emanuele Filiberto Duca d'Aosta.

(Regia Marina Photo)
Eugenio di Savoia.

(Regia Marina Photo)

Luigi di Savoia Duca degli Abruzzi.

(Regia Marina Photo)

Luigi di Savoia Duca degli Abruzzi.

(Regia Marina Photo)
Giuseppe Garibaldi

The first group, the four Giussanos, were built to counter the French large destroyers (contre-torpilleurs), the first being the 2,500 ton Le Fantasque-class, and therefore they featured very high speed, in exchange for virtually no armour protection. The following two Cadornas retained the main characteristics, with minor improvements to stability and hull strength.Major changes were introduced for the next pair, the Montecuccolis. About 2,000 tons heavier, they had significantly better protection, and upgraded power-plants to maintain the required high speed.The two Duca d'Aostas continued the trend, thickening the armour and improving the power plant again.The final pair, the Luigi di Savoia Duca degli Abruzzis completed the transition, sacrificing a little speed for good protection (their armour scheme was the same of the Zara-class heavy cruisers) and for two more 6-inch /55 guns.

All ships served in the Mediterranean during the Second World War. The ships of the first two subclasses (with the exception of Luigi Cadorna) were all lost by 1942, primarily to enemy torpedoes (with Bartolomeo Colleoni sunk by destroyers at the Battle of Cape Spada after being crippled by HMAS Sydney, Alberico da Barbiano and Alberto di Giussano suffering a similar fate at in a night action of the Battle of Cape Bon, Giovanni delle Bande Nere sunk by British submarine HMS Urge, and Armando Diaz sunk by the British submarine HMS Upright) that led many authors (including Preston) to question their real value as fighting ships. The subsequent vessels fared considerably better with all surviving the war, except Muzio Attendolo (torpedoed in August 1942 and sunk by an Allied bombing in December 1942).After the end of the war, Eugenio di Savoia and Emanuele Filiberto Duca d'Aosta were given to the Greek Navy and the Soviet Navy respectively as war reparations; Luigi Cadorna was quickly stricken, Raimondo Montecuccoli became a training ship, and the Luigi di Savoia Duca degli Abruzzi subclass served on in the Marina Militare until the 1970s, with Giuseppe Garibaldi becoming the first European guided missile cruiser in 1961. (Wikipedia)