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
Peace and Truce of God of secular leadership, Robert the Pious (996–1031) espouses an oath that combines both religious movements: The oath is important because it shows that secular powers are now willing to show obedience to ecclesiastical powers and to rein in problematic knights and armies. Furthermore, knightly and martial violence is often subverted by ecclesiastical powers through the use of crusade. For Pope Urban II, at the Council of Clermont in 1095, the subversion of martial violence is effective in dealing with secular violence: The Peace of God and the Truce of God therefore works within the rhetorical landscape of subverting violence by