Baldwin I of Jerusalem fought for their brother, Godfrey of Bouillon, against Albert III, Count of Namur and Theoderic, Bishop of Verdun at Stenay in 1086. The childless Godfrey, who became duke of Lower Lotharingia in 1087, mentioned Baldwin in most of his charters of grant, indicating that Baldwin was regarded as his heir. Baldwin regularly visited the fortress of his wife's family at Conches-en-Ouche. Pope Urban II proclaimed the First Crusade at the Council of Clermont on 27November 1095. Godfrey of Bouillon decided to join the military campaign and sold or mortgaged his inherited domains to raise funds. One of his domains, the
Roman Catholic Diocese of Saint-Flour of it except the church. Amblard and Astorg, from 1010 to 1013, gave this church and its fief to St. Peter's at Rome, together with the monastery of Sauxillanges, governed by Odilo; but later Amblard considered this donation as void, and constructed a fortress, a remnant of which is now the sacristy of the cathedral, on the site of the old monastery; afterwards Amblard, seized with remorse at Rome, between 1025 and 1031 gave back to Odilo all he possessed, and a large monastery was again founded. Pope Urban II, after the Council of Clermont (1095), consecrated the church of