Pope Urban II that was caused by the Great Schism of 1054. Others believe that Urban saw this as an opportunity to gain legitimacy as the pope as at the time he was contending with the antipope Clement III. A third theory is that Urban felt threatened by the Muslim incursions into Europe and saw the crusades as a way to unite the christian world into a unified defense against them. The most important effect of the First Crusade for Urban himself was the removal of Clement III from Rome in 1097 by one of the French armies. His restoration there was supported
Philip I of France with Bertrade de Montfort, the wife of Fulk IV, Count of Anjou. He repudiated Bertha (claiming she was too fat) and married Bertrade on 15 May 1092. In 1094, he was excommunicated by Hugh of Die, for the first time; after a long silence, Pope Urban II repeated the excommunication at the Council of Clermont in November 1095. Several times the ban was lifted as Philip promised to part with Bertrade, but he always returned to her, but in 1104 Philip made a public penance and must have kept his involvement with Bertrade discreet. In France, the king was opposed