Duchy of Aquitaine

The Duchy of Aquitaine was a historical fiefdom located in the western, central and southern areas of present-day France, south of the river Loire. The full extent of the duchy, as well as its name, fluctuated greatly over the centuries and at times comprised much of what is now southwestern France, including Gascony, and central France. The territory originated in 507 as a constituent kingdom of Francia after the Salian Franks conquered Aquitaine following the Battle of Vouille, with its boundaries ultimately a combination of the Roman provinces of Aquitania Prima and Secunda; it passed to the Kingdom of France after the Hundred Years' War.