Crusades In 1095, Pope Urban II called for the First Crusade in a sermon at the Council of Clermont. He encouraged military support for the Byzantine Empire and its Emperor, AlexiosI, who needed reinforcements for his conflict with westward migrating Turks colonizing Anatolia. One of Urban's aims was to guarantee pilgrims access to the Eastern Mediterranean holy sites that were under Muslim control but scholars disagree as to whether this was the primary motive for Urban or those who heeded his call. Urban's strategy may have been to unite the Eastern and Western branches of Christendom, which had been divided since
Ardèche the fusion by Rudolph II of Burgundy of the realms of Provence and Burgundy and bequeathed by its last monarch Rudolph III of Burgundy to the Holy Roman Emperor Conrad II in 1032. Locally throughout this period, the Church played an important role. John II (Giovanni of Siena), Cardinal and Bishop of Viviers (1073–1095), accompanied Pope Urban II to the Council of Clermont. It was later held in fief by the Counts of Toulouse, who lost it to the French crown in 1229. In 1284, with the Cistercian Abbey of Marzan, Philip IV established Villeneuve de Berg, and by the