First Crusade in Asia Minor — Nicaea and Antioch — required large numbers of soldiers with experience in siege warfare, precisely the type of force recruited by Urban in France in his call to arms of 1095/6. First Crusade The First Crusade (1095–1099) was the first of a number of crusades that attempted to recapture the Holy Land, called for by Pope Urban II at the Council of Clermont in 1095. Urban called for a military expedition to aid the Byzantine Empire, which had recently lost most of Anatolia to the Seljuq Turks. The resulting military expedition of primarily Frankish nobles, known
Peace and Truce of God of secular leadership, Robert the Pious (996–1031) espouses an oath that combines both religious movements: The oath is important because it shows that secular powers are now willing to show obedience to ecclesiastical powers and to rein in problematic knights and armies. Furthermore, knightly and martial violence is often subverted by ecclesiastical powers through the use of crusade. For Pope Urban II, at the Council of Clermont in 1095, the subversion of martial violence is effective in dealing with secular violence: The Peace of God and the Truce of God therefore works within the rhetorical landscape of subverting violence by