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
Pope Urban V orders of the antipope Clement VII. The Western Schism caused the process to stop, but it was revived centuries later, and led to the beatification of Urban V on 10 March 1870 by Pope Pius IX. His feast day is celebrated on 19 December, the day of his death. This was decided upon by a General Chapter of the Benedictine Order held in 1414. Pope Urban V Pope Urban V (; 1310 – 19 December 1370), born Guillaume de Grimoard, was Pope from 28 September 1362 until his death in 1370 and was also a member of the Order of