History of the papacy finally resulted in mutual denunciations and excommunications. Pope Urban II (1088–99) speech at the Council of Clermont in 1095 became the rallying cry of the First Crusade. Unlike the previous millennium, the process for papal selection became somewhat fixed during this period. Pope Nicholas II promulgated "In nomine Domini" in 1059, which limited suffrage in papal elections to the College of Cardinals. The rules and procedures of papal elections evolved during this period, laying the groundwork for the modern papal conclave. The driving force behind these reforms was Cardinal Hildebrand, who later became Gregory VII. The pope is the bishop
Pope Urban II than to his own desire that Jerusalem be freed from Muslim rule. It was believed that originally that Urban wanted to send a relatively small force to aid the Byzantines, however after meeting with two prominent members of the crusades Adhemar of Puy and Raymond of Saint-Guilles, Urban decided to rally a much larger force to retake Jerusalem. Urban II refers to liberating the church as a whole or the eastern churches generally rather than to reconquering Jerusalem itself. The phrases used are "churches of God in the eastern region" and "the eastern churches" (to the Flemish), "liberation of the