What religious leader from the Catholic Church helped to organize the First Crusade?

Pope Urban II was the religious leader from the Catholic Church who helped to organize the First Crusade. In 1095, he called for the Crusade during the Council of Clermont, urging Christians to reclaim the Holy Land from Muslim control. His passionate appeal led to widespread support across Europe, mobilizing thousands to join the campaign. Urban II's leadership was pivotal in transforming the idea of pilgrimage into a military endeavor.