Castelfranco Emilia is a town and comune in Modena, Emilia-Romagna, north-central Italy. The town lies about 25 kilometres northwest of Bologna. Castelfranco either occupies or lies near the site of the ancient Forum Gallorum, a place on the via Aemilia between Modena and Bologna. Near the town, on 14 April 43 BC, Octavian and Hirtius defeated Mark Antony in a battle during the War of Mutina. The village never gained prominence in ancient times.