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 I An image of Pope Saint Urbanus (or Urban/Urbain) is on a 12th-century fresco at Chalivoy-Milon in the Berry Art Gallery. Other less common depictions of Pope Urban are: Pope Urban I Pope Urban I () was Bishop of Rome or Pope from 222 to 23 May 230. He was born in Rome and succeeded Pope Callixtus I, who had been martyred. It was previously believed for centuries that Urban I was also martyred. However, recent historical discoveries now lead scholars to believe that he died of natural causes. Much of Urban's life is shrouded in mystery, leading to many myths