Castelfidardo (Unification of Italy).

Fought September 18, 1860, between the Papal troops under General La Moricière, about 8,000 strong, and the Sardinians, 40,000 strong, under General Cialdini. The Papal army was totally routed, and, after the action, La Moricière was only able to assemble about 300 infantry, with which remnant he made his way to Ancona.