Guilliaume de Montfort He fought in the First Crusade, but was killed there in battle on 27 August 1101. Guilliaume de Montfort Guilliaume de Montfort () (died 27 August 1101) was a French bishop, most notably the Bishop of Paris from 1095 to 1101. Montfort's date of birth is not known, but it was some time before the death of his father, Simon I de Montfort in 1087. He was Bishop of Yves some time before becoming the Bishop of Paris. In 1095, Pope Urban II held the Council of Clermont at Clermont-Ferrand, France. It excommunicated Philip I of France and Bertrade de
Pope Urban V Avignon. He was appointed by the Bishop of Clermont, Pierre de Aigrefeuille (1349-1357) to be his Vicar General, which meant in effect that he ruled the diocese on behalf of the bishop. When Bishop Pierre was transferred to Uzès (1357-1366), Guillaume Grimond became Vicar General of Uzès. Guillaume was named abbot of the monastery of Saint-Germain en Auxerre on 13 February 1352 by Pope Clement VI. In 1359 the town and abbey were captured by the English and subjected to heavy imposts. In the summer of 1352 Pope Clement VI summoned Abbot Guillaume for an assignment. Northern Italy had been