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
Pope Urban II Church" (to Bologna), "liberating Christianity [Lat. Christianitatis]" (to Vallombrosa), and "the Asian church" (to the Catalan counts). Coincidentally or not, Fulcher of Chartres's version of Urban's speech makes no explicit reference to Jerusalem. Rather it more generally refers to aiding the crusaders' Christian "brothers of the eastern shore," and to their loss of Asia Minor to the Turks. It is still disputed what Pope Urban's motives were as evidenced by the different speeches that were recorded, all of which differ from each other. Some historians believe that Urban wished for the reunification of the eastern and western churches, a rift