Treaty of Meaux

The Treaty of Meaux, signed in 1229, concluded the Albigensian Crusade. This crusade was initiated by Pope Innocent III against the Cathari, a dualist religious group in southern France considered heretical by the Roman Catholic Church. The conflict pitted northern French nobility against the southern nobles who tolerated the Cathari.12

While the crusade did not eradicate Catharism, it significantly weakened the southern nobility and paved the way for the French king to assert authority over the region. The treaty formalized the transfer of lands from Raymond VII of Toulouse to the French crown, ultimately strengthening royal power in southern France. The Inquisition, established later, eventually suppressed the Cathar heresy.12