Abstract
Cathars, a Christian dualist-gnostic order of the Middle Ages, is not known well in our country and has some certain striking features among the religious movement in this cultural area. The Cathars were denounced as heretics due to the mentioned features, and attracted the antagonism of the Churchseverely by their irreconcilable stances in basic dogmas and practices including the perception of God, baptism, Jesus Christ, Holy Virgin, the primordial sin, the Sacred Scripture. Thus, they witnessed the greatest massacres in a manner unprecedently throughout the history. As a result of the attacks of the Papacy and the Inquisition against their leaders as well as their proponents, thousands of their followers were sacrificed. Moreover, the Cathars put their stamp on history as one of the most oppressed societies within the history in consequence of the carnages carried out by a certain Crusade called Albigeois, and they were exterminated by burning at the stake, which indicates the extent of the oppression they witnessed.