Battle of Custoza: An Austrian army defeats the Italian army during the Austro-Prussian War.

The Battle of Custoza took place on the 24 June 1866 during the Third Italian War of Independence in the Italian unification process.

The Austrian Imperial army, joined by the Venetian Army, jointly commanded by Archduke Albrecht of Habsburg, defeated the Italian army, led by Alfonso Ferrero La Marmora and Enrico Cialdini.