City (pop., 2006 est.: 46,639), southwestern France. Situated on the Aude River, it was occupied by the Iberians in the 5th century BC and later by Gallo-Romans. Muslims took it in AD 728. The French soldier Simon de Montfort captured it c. 1209, and in 1247 it was united with the French crown. It was burned by Edward the Black Prince in 1355 when he failed to take the citadel. A 13th-century church and cathedral survive, as do remains of medieval fortifications, the last of which were designated a World Heritage site in 1997. The city's main economic activities are tourism and retailing.