Roman Catholic Archdiocese of Clermont with the complicated business of Tetradia, the widow of one Desiderius, and her dealings with Count Eulalius. Pope Urban II came to Clermont in mid-November 1095 to preside at the Council which launched the First Crusade; Pope Paschal II visited the city in 1106; Callistus II on 19 May 1119; Innocent II from mid-November to early-December 1130, where he held a synod; Pope Alexander III from 13 to 19 August 1162, and again from 25 May to 25 June 1165; and, in 1166, Thomas Becket. It was also at Clermont that, in 1262, in presence of St. Louis, the marriage
Simon II of Clermont-Nesle king engaged the best available lawyers for his case. The conflict led in 1309 to the moving of the Papal court, under Pope Clement V (c. 1264–1314), to Avignon, outside the king's realm. Simon was a son of Simon II of Clermont, Seigneur of Ailly, Maulette and Nesle (c. 1216–1286) by Adele of Montfort (d. 1279), daughter of Amaury VI of Montfort. The father was a counsellor of King "Saint" Louis IX of France and was appointed regent ("lieutenant") while the king went away on the Seventh Crusade. Simon had three brothers and at least one sister, whose son was