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Originating from Châtillon-sur-Marne, Pope Urban II, born Odo of Lagery, played a pivotal role in European history. Remembered for his momentous speech at the Council of Clermont in 1095, he ignited the fervor for the First Crusade, aiming to reclaim the Holy Land from Muslim control. Urban II's profound theological and political impact continues to captivate historians, theologians, and medieval enthusiasts alike.