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 Legate to Italy to arrange the business. Then, through the mediation of Holy Roman Emperor Charles IV, Urban lifted his excommunication against Bernabò, obtaining Bologna only after he signed a hasty peace that was highly favorable to Bernabò. In May 1365 the Emperor Charles visited Avignon, where he appeared with the Pope in full imperial regalia. He then proceeded to Arles, which was one of his domains, where he was crowned King by the Archbishop, Pierre de Cros, OSB. Urban V's greatest desire was that of a crusade against the Turks. In 1363, King John II of France and Peter