This high-perched citadel (780m) comprises two adjacent but separate castles. The lower, château bas was built in the 11C when the Corbières were part of Aragon. A gaping hole in a watchtower near the lower keep commands a splendid view of Quéribus. When the castle was handed over to France in the 13C, King Louis had the Château St-Georges (796m) built on the highest point of the mountain. The site of the old chapel commands a spectacular view of the stronghold and the region below.