Note 102 — Chapter IX · CHRISTENDOM IN THE MIDDLE AGES

During the first half of the century its warfare with the emperors, and the frequent appointment of anti-popes, prevented any systematic policy on the part of the Holy See,102 repression being mostly left to the local ecclesiastical authorities. It was in 1139 that Innocent II issued the first papal decree against Cathari, expelling them from the Church and calling on the temporal power to give full effect to their excommunication.103 In 1163 Pope Alexander III, being exiled from Rome by Frederick I and the anti-pope Victor, called a great council at Tours, where again a policy of excommunication was decided on, the secular authorities being commanded to imprison the excommunicated and confiscate their property, but not to slay them. In the same year some Cathari arrested at Cologne had been sentenced to be burned; but the Council did not go so far. As a result the decree had little or no effect.104