The Ammiraglio di Saint Bon class was a pair of pre-dreadnought battleships built for the Italian Navy during the 1890s. The class comprised two ships: Ammiraglio di Saint Bon, the lead ship, and Emanuele Filiberto. They were armed with a main battery of four 254 mm (10 in) guns and were capable of a top speed of 18 knots. Smaller and less powerfully-armed than most contemporary battleships, they marked a brief departure from Italian capital ship design, which had previously emphasized large ships equipped with large guns.

The Regina Margherita class was a class of two battleships built for the Italian Regia Marina between 1898 and 1905. The class comprised two ships: Regina Margherita and Benedetto Brin. The ships were designed by the latter's namesake, Benedetto Brin, who died before the ships were completed. They were armed with a main battery of four 12 in (305 mm) guns and could steam at a speed of 20 knots.