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| Principe di Piemonte | |
|---|---|
| Ship name | Principe di Piemonte |
| Ship namesake | Prince of Piedmont |
| Ship class | Conte di Cavour-class battleship |
| Ship builder | Cantieri Odero-Terni-Orlando |
| Ship laid down | 5 May 1910 |
| Ship launched | 3 June 1911 |
| Ship completed | 1914 |
| Ship identification | RN Principe di Piemonte |
Principe di Piemonte was a Conte di Cavour-class battleship of the Regia Marina launched in 1911 and completed in 1914. Built by Cantieri Odero-Terni-Orlando at Muggiano, La Spezia, she formed part of the Italian naval rearmament in the pre-World War I era alongside contemporaries such as Duilio (battleship) and Andrea Doria (1913 battleship). Principe di Piemonte saw limited action during World War I and underwent major reconstruction between the wars to address developments exemplified by ships like HMS Queen Elizabeth and USS Nevada (BB-36). Her career intersected with events and personalities including Vittorio Emanuele III, Benito Mussolini, Admiral Paolo Thaon di Revel, and the interwar naval treaties such as the Washington Naval Treaty context that influenced Mediterranean strategy.
The Conte di Cavour-class program originated from Italian naval planners reacting to Austro-Hungarian developments like the Radetzky-class battleship and to French designs typified by Danton (battleship). Italian naval policy in the 1900s, guided by figures such as Alberto Pollio and ministers like Vittorio Cuniberti, prioritized capital ships to project power in the Mediterranean Sea and to contest the Austro-Hungarian Navy. The keel of Principe di Piemonte was laid at Cantieri Odero-Terni-Orlando under an order that also produced sister ships Conte di Cavour (1911) and Giulio Cesare (1913). Launched in 1911 and commissioned in 1914, she entered service as Europe moved toward the crises that culminated in Assassination of Archduke Franz Ferdinand and the subsequent July Crisis.
Principe di Piemonte was built to the mixed-armament scheme of the Conte di Cavour class, mounting a main battery of thirteen 305 mm/46 guns in four main turrets similar in concept to contemporaries like Bellerophon-class battleship and influenced by Designs of Vittorio Cuniberti. Her armor scheme reflected Italian priorities; the belt armor and deck armor were comparable to those on Dreadnought (1906) derivatives. Propulsion consisted of vertical triple-expansion engines and coal-fired boilers, aligning her with pre-turbine capital ships such as Italia (1912 battleship). Displacement figures placed her among the larger prewar Italian battleships, intended to rival SMS Tegetthoff. Original speed, range, complement, sensor suite, and armament layout conformed to doctrines debated by naval thinkers including Giuseppe Fioravanzo and Admiral Paolo Thaon di Revel.
At the outbreak of World War I, Principe di Piemonte served with the 1st Division of the Regia Marina and was based at Taranto and Brindisi during operations in the Adriatic Sea. Italian strategy, shaped by Admiral Paolo Thaon di Revel and constrained by submarine and mine threats exemplified by SM U-5 actions, limited fleet sorties. Principe di Piemonte participated in fleet maneuvers, training cruises, and diplomatic shows of force involving counterparts such as Royal Navy squadrons visiting the Mediterranean Fleet. Between the wars she took part in peacetime activities, port visits to Barcelona, Marseille, and Alexandria, and naval reviews attended by Vittorio Emanuele III and other European monarchs.
In the 1930s, responding to advances typified by HMS Hood and interwar reconstruction trends seen in USS Florida (BB-30), Principe di Piemonte underwent a comprehensive reconstruction similar to her sisters. Upgrades included reboilering with oil-fired boilers influenced by technologies used on HMS Warspite, replacement of amidships turrets to improve firing arcs comparable to modifications on Yamashiro-class battleship contemporaries, and modernization of fire-control systems drawing on innovations from firms like Vickers and SMA (Società Marelli Automazione). Anti-aircraft batteries were expanded with weapons akin to the Italian 90/50 and Breda 37 mm mounts to counter threats from aircraft such as the Bristol Blenheim and Savoia-Marchetti SM.79. Structural changes increased beam and displacement, echoing conversions performed on Conte di Cavour (battleship) and Giulio Cesare (battleship).
Principe di Piemonte saw limited direct combat during World War I due to the cautious doctrines of Admiral Paolo Thaon di Revel and the deterrent role of the battlefleet, which contrasted with the offensive sorties of the Royal Navy at Gallipoli Campaign. Her interwar and early World War II service involved convoy escort duties and patrols in the Tyrrhenian Sea and Ionian Sea as tensions rose with Kingdom of Greece and Kingdom of Yugoslavia and during engagements influenced by Spanish Civil War dynamics. Principe di Piemonte was present during fleet actions and sorties where Italian naval forces confronted Allied units including elements of the Royal Navy and United States Navy in the Mediterranean theater, amid operations such as the Battle of Calabria context and escort operations related to campaigns like Operation Halberd.
As World War II progressed and naval warfare shifted toward air power exemplified by Carrier Battle of Midway ramifications and aerial torpedo threats demonstrated at Taranto raid (1940), older battleships like Principe di Piemonte grew increasingly vulnerable. Following wartime operations and post-armistice realignments involving the Armistice of Cassibile, she was progressively withdrawn from frontline service. Decommissioned in the later stages of the war, Principe di Piemonte was stricken and ultimately sold for scrap, concluding her career in a manner similar to many early 20th-century dreadnought era capital ships that were retired in favor of newer designs and postwar naval priorities.
Category:Conte di Cavour-class battleships Category:Ships built in La Spezia Category:1911 ships