 The Regioni class was a group of six protected cruisers built for the Italian Regia Marina ( Royal Navy ) in the late 1880s through the early 1900s . The class comprised Umbria , Lombardia , Etruria , Liguria , Elba , and Puglia , all of which were named for regions of Italy with the exception of Elba , which was named for the island . The class is sometimes referred as the Umbria class , for the first ship to be laid down . The ships , built by four different shipyards , varied slightly in their size , speed , and armament , but all could steam at about 18 kn ( 33 km / h ; 21 mph ) and their main armament consisted of four 15 @-@ centimeter ( 5 @.@ 9 in ) guns and six 12 cm ( 4 @.@ 7 in ) guns . 
