"Of all the heresies in the Middle Ages, none posed more of a threat to the Catholic Church in either perception or reality than did Catharism. Though there is no consensus among scholars about actual numbers of those committed to Cathar teaching, there is no question that in certain areas of Europe, especially Southern France and Northern Italy, Catharism had wide popular appeal and the support of significant local figures. The phenomenon of Catharism made a great impact on the Catholic Church. The anxiety caused by this heresy led to the “professionalization” and standardization of inquisitorial procedure under the control of the papacy. It was against Cathars that the Dominican mission first took shape".
As the Cathars are regularly cited as having some bearing on the enigma of Rennes-le-Chateau, here is an interesting article on them.
Welcome to the blog of Rhedesium
My name is Sandy Hamblett, inspired and passionate researcher of the mysteries at Rennes-les-Bains.