In the XIII Century, The Châteaux Cathares were the witness of the Albigensian Crusade which devastated the Oc region from the Rhone to the Garonne. Lots of them are standing around Carcassonne, the most famous ones are named: Peyrepertuse, Queribus, Termes, Aguilar, Durfort (Corbières); Saissac, Ventajou, Minerve (Montagne Noire); Usson, Puylaurens, Montségur (Pyrenees)...