Christianity in the 11th century when the Seljuk Turks closed Christian pilgrimages and assailed the Byzantines, defeating them at the Battle of Manzikert. Emperor Alexius I asked for aid from Pope Urban II for help against Islamic aggression. Urban II called upon the knights of Christendom in a speech made at the Council of Clermont on 27 November 1095, combining the idea of pilgrimage to the Holy Land with that of waging a holy war against infidels. The First Crusade captured Antioch in 1099 and then Jerusalem. A traditional numbering scheme for the crusades totals nine during the 11th to 13th centuries. Elements of the
Saint-Flour, Cantal a fortress in the ruins of the monastery, but, seized with remorse, donated it once more to Odilo of Cluny. Urban II, following the Council of Clermont (1095) consecrated the new abbey church, which received a triple dedication reflecting local tradition and present affiliations: Saint-Sauveur, Saint Pierre and Saint Flour. The diocese of Saint-Flour was established in August 1317 by the Avignon pope, John XXII. During the Revolution the commune took several successive names, de-Christianized as Fort-Cantal, "Fort-Libre" then Mont-Flour before retrieving its ancient historic designation in "an II" (1793). The territory of the commune was never changed. Briefly, between