Albigensianism
Of Christianity and unorthodoxy. May also be referred to as Catharism.
A Christian movement considered to be a medieval descendant of Manichaeism in southern France in the 12th and 13th centuries; characterized by dualism (asserted the coexistence of two mutually opposed principles, one good and one evil); was exterminated for heresy during the Inquisition.
This concept's ID is @1~33415