Of the San Giorgio-class wit as sister ship the San Marco. Improved Pisa-class design.
Building ordered on 3 August 1904, laid down at the Regio Cantieri do Castellammare di Stabia, Castellammare di Stabia, Italy on 4 July 1905, launched on 27 July 1908, completed on 1 July 1910, training ship 1930-1935, modernized 1937-1938, scuttled at Tobruk, Libya to prevent capture by the Allies forces on 22 January 22 January 1941, stricken from the navy list on 18 October 1946 and sunk while under tow towards Italy to be broken up in 1952.
Displacement 10.167 tons/10.006 long tons and as dimensions 131,04 (between perpendiculars)-140,89 (over all) x 21,03 x 7,35 metres or 429.11-362.3 x 69.0 x 24.1 feet. Fitted out with 2 vertical triple expansion steam engines to which 14 mixed-firing Blechynden boilers were added supplying via one screw 19.595 ihp (trials)-23.2000 shp (design) allowing a speed off 22,5 (design)-23,2 (trials) knots. With a speed pf 10 knots was her range 6.270 nautical miles. Armament consisted of 4x2-25,4cm/10” Canone da 254/45 A Modello 1908 guns, 4x2-19cm/7.5” Canone da 190/45 A Modello 1908 guns, 18x1-7,6cm/3.0 L/40 quick firing guns to be used against torpedo boats , 2x1-4,7cm/1.9” L/50 quick firing guns and 3-45cm/17.7” submerged torpedo tunes. In the First World War were 8-7,6cm guns replaced by 6-7,6cm anti aircraft guns and was one torpedo tube removed. The armour consisted of a 8cm/3.1” (at bow&stern)-20cm/7.9” (amidships) thick belt, a 5cm/2.0” thick deck with the conning tower, main gun turrets and secondary gun turrets were protected by respectively 25,4cm/10.0“, 20cm and 160cm/6.3” thick armour. Crew numbered 698-705 men.
