the Five Sons of Carcassonne: Château d'Aguilar Château de Peyrepertuse Château de Puilaurens Château de Quéribus Château de Termes Abandonment of the Five Sons of Carcassonne In 1659, Louis XIV and the Philip IV of Spain signed the Treaty of the Pyrenees, sealing the marriage of the Infanta Marie Therese to the French King. The treaty modified the frontiers, giving Roussillon to France as part of the dowry, and moving the international frontier south to the crest of the Pyrenees, the present Franco-Spanish border. The Five Sons of Carcassonne thus lost their importance. Some maintained a garrison for a while, a few until the French Revolution, but they fell into decay, often becoming shelters for shepherds or bandits. Other "Cathar castles" Château d’Arques Château de Durfort Châteaux de Lastours Château de Montségur Château de Padern Château de Pieusse Château de Puivert Rennes-le-Château Château de Roquefixade Château de Saissac Château d'Usson See also List of castles in France Catharism External links Association des Sites du Pays Cathare: historical and tourist information Castle of Termes official website, in English. About France The story of the Cathars in Languedoc, and a short guide to Cathar heritage Cathar Country Cathars, Cathar Beliefs and Cathar Castles. Cathar Castles Cathar Castles: History, Location and Photographs. Map showing Cathar Castles in the Languedoc References Notes Bibliography . . . Further reading Castles in Ariège Castles in Aude Catharism