The Regia Marina or Royal Italian Navy was the navy of the Kingdom of Italy from 1861 to 1946. In 1946, with the birth of the Italian Republic, the Regia Marina changed its name to Marina Militare.
The Sea Battle of Lissa, by Carl Frederik Sørensen, 1868
Szent István low in the water, after being torpedoed by Italian MAS boats
Amerigo Vespucci, launched in 1931; here in the harbor of New York, 1976
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
Regia Marina
…began, focusing first on cruisers up to 10,000 tons, followed by the building of destroyers and submarines, and lastly the construction of the new Littorio-class battleships; plans were also put in place to modernize the Conte di Cavour-class and Andrea Doria-class battleships. Much of these new naval units were…
Roma's forward triple 15-inch (381 mm) 50-caliber gun turrets.
Note the extent of the armored belt at the waterline, amidships
Littorio before completion; note the secondary battery and other equipment have not been installed