Council of Clermont could be fulfilled. Council of Clermont The Council of Clermont was a mixed synod of ecclesiastics and laymen of the Catholic Church, called by Pope Urban II and held from 18 to 28 November 1095 at Clermont, Auvergne, at the time part of the Duchy of Aquitaine. Pope Urban's speech on November 27 included the call to arms that would result in the First Crusade, and eventually the capture of Jerusalem and the establishment of the Kingdom of Jerusalem. In this, Urban reacted to the request by Byzantine emperor Alexius I Comnenus who had sent envoys to the Council of
Pope Urban II declarations against simony, lay investitures, clerical marriages (partly via the "cullagium" tax), and the emperor and his antipope. He facilitated the marriage of Matilda, countess of Tuscany, with Welf II, duke of Bavaria. He supported the rebellion of Prince Conrad against his father and bestowed the office of groom on Conrad at Cremona in 1095. While there, he helped arrange the marriage between Conrad and Maximilla, the daughter of Count Roger of Sicily, which occurred later that year at Pisa; her large dowry helped finance Conrad's continued campaigns. The Empress Adelaide was encouraged in her charges of sexual coercion against