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
Bertrand de Montredon Bertrand de Montredon Bertrand de Montredon was an 11th-century Catholic bishop. He was consecrated by Pope Urban II, and was bishop of Nîmes from 1095 to 1097 and then of Narbonne from 1097–1106. As Bishop of Nimes he attended the Council of Clermont in 1095, and the synod convened for the blessing of Maguelonne island and the founding of a church there, He was also at the wedding of count Raymond of Saint-Giles. After serving as Archbishop of Narbonne, he was replaced in the dispute between Psalmodi and St. Victor of Marseille by the mediator Raymond William of Montpellier, possibly