History of the papacy (1048–1257) 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 Investiture Controversy was the most significant conflict between secular and religious
Adhemar of Le Puy Crusade. Adhemar most likely met Pope Urban II, when in August 1095 Pope Urban the Second visited Puy. At the Council of Clermont in 1095, Adhemar showed great zeal for the crusade (there is evidence that Urban II had conferred with Adhemar before the council). Adhemar was named apostolic legate and appointed to lead the crusade by Pope Urban II on 27 November 1095. In part, Adhemar was selected to lead because he had already undertaken a pilgrimage to Jerusalem in 1086 and 1087. Following the announcement of the Crusade Adhemar spent the next year raising money and recruiting men.