Overview
Guillaume de Montfort (died 27 August 1101) was a French bishop, most notably the Bishop of Paris from 1095 to 1101.
Early life
Montfort was the son of Simon I de Montfort. His date of birth is not known. He became a clerk to Saint Ivo of Chartres, the Bishop of Chartres.
Election
In 1095, Pope Urban II held the Council of Clermont at Clermont-Ferrand, France. It excommunicated Philip I of France and Bertrade de Montfort, William's sister, for adultery. William had been noted as a great supporter of Urban II, and after the death of Geoffrey of Boulogne on 1 May 1095 he was in the running to become Bishop of Paris.
As the queen's brother, he held considerable power and sway over the council that elected him - he was also known for his religious devotion. However, he was young and a fairly minor member of the French church.
From Wikipedia (CC BY-SA 4.0).