The first Synod of the Cathar church, known as the Council of Saint-Félix was held there in 1167.
In the 14th century, the castle was transformed into a country house by a brother of Pope John XXII.
Only a small portion of it was habitable and it was estimated that 2,850,000 € would be required to make it fully so.
In late August 2012, the commune of St-Felix-Lauragais, at the request of the mayor André Rey, intervened in the purchase and compulsorily acquired the château at a cost of 1,240,000 €.
[2] Despite the economic crisis affecting France at the time, it is not known how the commune will raise the almost 3,000,000 € needed to make the building safe for the public to use and visit.