`titrebLegislation against Heresy and the Repression of Witchcraft`/titrebThe witch hunt which is initiated in Western Europe in the xvith and xviith centuries is to be understood in the more general context of a logic of Catholic reconquest over the Protestant reform. A question is thus raised : is there a connection between heresy and witchcraft, which must be dissociated from simple superstition ? The sorcerer is indeed one who worships Satan and trespasses on the field of sacredness. He is then a heretic who represents a threat to the true creed and above all to the clergy. This clergy was then the first to give, towards the end of the xvth century, a definition of witchcraft and to engage in repression through the Inquisition. This repression was taken over and expanded by the King’s judiciary in the XVIth century. At this time the Protestant reform was in full bloom. A connection was thus made between witchcraft and Protestantism, two phenomena which, according to the Catholics, were a source of disorder and disbelief.