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
Counts of Clermont-Tonnerre Counts of Clermont-Tonnerre Clermont-Tonnerre is the name of a French noble family, members of which played some part in the history of France, especially in Dauphiné, from about 1100 to the French Revolution (1789–99). Sibaud, lord of Clermont in Viennois, who first appears in 1080, was the founder of the family. His descendant, another Sibaud, commanded some troops which aided Pope Calixtus II in his struggle with the Antipope Gregory VIII. In return for this service, it is said that the pope allowed him to add certain emblems, two keys and a tiara to the arms of his family. A