Albigensian Crusade: Cathars and Catharism in the Languedoc

Catharism in the Languedoc, Cathar beliefs. Cathars and heretics, the high culture of the troubadours and the Counts of Toulouse. The Role of the Roman Catholic Church: Innocent III, Crusades (The Albigensian Crusade) and the annexation of the Languedoc to France.