of Ostia, Pope Urban II, the son of Milon the seigneur of Châtillon in the 11th century Urban's call for the 1095 crusade Publications about Urban II in the OPAC of the Regesta Imperii 1030s births 1099 deaths 11th-century French people House of Châtillon People from Marne (department) Cluniacs Cardinal-bishops of Ostia Christians of the First Crusade Diplomats of the Holy See French popes Benedictine popes Christian critics of Islam 11th-century popes Beatified popes French beatified people Benedictine beatified people Popes Cardinals created by Pope Gregory VII Crusades Beatifications by Pope Leo XIII Burials at St. Peter's Basilica