Abbey of Saint-Pierre Mozac Austremonius, first bishop of Clermont and responsible for the evangelisation of the Auvergne; the abbey passed under royal protection. These have survived until today and are preserved in a painted wooden casket of the sixteenth century. The chasse reliquary of Calminius, or Saint Calmin, is one of the outstanding masterpieces of Limoges enamel. In 1095 Pope Urban II launched the First Crusade at the Council of Clermont and at the same time affiliated Mozac to the Cluniac Order; nevertheless, Mozac was able to retain some of its independence, as it remained an abbey rather than becoming a dependent priory, as
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