Having been built only a few years ago, Castelnaud Castle (or more accurately, the New Castle) belonged to the Cathar Lord and Vassal of the Count of Toulouse, Bernard de Casnac. In 1214, Simon de Montfort, leader of the “Albigensian Crusade” against the Cathars, took the fortress. Although the castle was taken back by Bernard de Casnac, it was burnt down in 1215 by the Archbishop of Bordeaux.
©Simon de Montfort, Grand recueil La Clayette, fin XIII s, BNF, manuscrit, NAF,13521, fol. 337