Etna was a protected cruiser of the Italian Regia Marina built in the 1880s. She was the lead ship of the Etna class, which included three sister ships. Named for Mount Etna on the island of Sicily, the ship was laid down in January 1883, was launched in September 1885, and was completed in December 1887. She was armed with a main battery of two 254 mm (10 in) and a secondary battery of six 152 mm (6 in) guns, and could steam at a speed of around 17 knots.

Lombardia was a protected cruiser of the Italian Regia Marina built in the 1890s. The ship was the second of six vessels in its class, but was the first to enter service. Named for the region of Lombardy, she was laid down in November 1889, was launched in July 1890, and was completed in February 1893. The ship was equipped with a main armament of four 15 cm (5.9 in) and six 12 cm (4.7 in) guns, and she could steam at a speed of 18 knots.