The Château de Montségur is probably the best known of all Cathar Castles. It is famous as the last Cathar stronghold, which fell after a 10 month siege in 1244. A field below the hill-top castle is reputed to be where over 200 Cathars were burned alive, having refused to renounce their faith.
A building on this site sheltered a community of Cathar women at the end of the twelfth century. Early in the thirteenth, Ramon de Pereille the co-seigneur and Chatelain, was asked to make it defensible, anticipating the problems to come.
It is open to the public, as is a museum in the nearby modern village of Montségur. There is an entrance fee for both.