Erzherzog Ferdinand Max-class ironclad

The Erzherzog Ferdinand Max class consisted of a pair of ironclad warships&mdash;SMS Erzherzog Ferdinand Max (1865) and SMS Habsburg (1865)&mdash;built for the Austrian Navy in the 1860s. They were the last broadside armored frigates to be built for the Austrian Empire, and the last vessels completed to see action at the Battle of Lissa in 1866.