Ravenna

Ravenna was a lagoon city in Romagna and a hereditary lordship of the da Polenta family under papal suzerainty. In 1337 Ostasio da Polenta ruled the city, where the exiled poet Dante had died in 1321.

Venice deposed Ostasio III in 1441 and held Ravenna until it returned to the papacy in 1509. French troops sacked the city after the battle of 1512. Venice briefly reoccupied it in 1527–1529; France annexed it in 1796, and the papacy regained it in 1814.