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
Ardèche the fusion by Rudolph II of Burgundy of the realms of Provence and Burgundy and bequeathed by its last monarch Rudolph III of Burgundy to the Holy Roman Emperor Conrad II in 1032. Locally throughout this period, the Church played an important role. John II (Giovanni of Siena), Cardinal and Bishop of Viviers (1073–1095), accompanied Pope Urban II to the Council of Clermont. It was later held in fief by the Counts of Toulouse, who lost it to the French crown in 1229. In 1284, with the Cistercian Abbey of Marzan, Philip IV established Villeneuve de Berg, and by the