History of Palestine Orthodox Church. However, in 1090, Byzantine Emperor Alexios I Komnenos began taking reconciliatory measures towards the Papacy, with the intention of seeking western support against the Seljuqs. In 1095 his ambassadors appeared before Pope Urban II at the Council of Piacenza, to request mercenary forces, and later that year at the Council of Clermont Pope Urban II called for the First Crusade. The Kingdom of Jerusalem was a Christian kingdom established in the Levant in 1099 as a result of the First Crusade. Its control of Jerusalem and most of Palestine lasted almost a century until defeat by Saladin's forces
Pope Urban II Pope Urban II Pope Urban II (; – 29 July 1099), born Odo of Châtillon or Otho de Lagery, was Pope from 12 March 1088 to his death in 1099. Urban II was a native of France. He was a descendant of a noble family in Châtillon-sur-Marne. Reims was the nearby cathedral school that Urban, at that time Eudes, began his studies at 1050. Before his papacy he was the abbot of Cluny and Bishop of Ostia under the name Eudes. As the Pope he would have to deal with many issues including the antipope Clement III, infighting of various