Example image of eyePlorer eyePlorer map for 'Albigensian Crusade': Catharism Catholic Church Languedoc Crown of Aragon Occitania Pierre de Castelnau Pope Innocent III France Occitan language Principality of Catalonia Dominican Order Medieval Inquisition Heretical Arianism Marcionism Waldensians Albi Tithing Saint Dominic Papal legate Excommunication Raymond VI, Count of Toulouse Philip II of France Papal bull Louis VIII of France Louis IX of France Inquisition Carcassonne Montpellier Raymond Roger Trencavel Béziers July 21 Arnaud Amalric 1209 August 1 August 7 August 15 Peter of Vaux de Cernay Simon de Montfort, 5th Earl of Leicester Castelnaudary Castres Fanjeaux Limoux Lombers Montréal, Aude Lastours Bram Minerve, Hérault July 22 Château de Termes