crown the Holy Roman Emperor Henry II had presented to the abbey, in order to relieve the hunger, thereby saving thousands from starvation. He also attended the coronation of Conrad II who succeeded Henry and had a similarly good relationship with him, and thus got the Emperor to give favour to Cluny. When there was a failed revolt against Conrad in Pavia in 1026, Odilo again interceded for mercy from the Emperor for the defeated rebels. In 1046 Odilo was present at the coronation of Henry III in Rome. Reform The rule of St. Benedict was substituted in Cluny for the domestic rule of Isidore. Under Odilo's rule not only Cluny made rapid progress but Benedictine monasteries in general were reformed and many new foundations made. Odilo threw the full Cluniac influence into the fight against simony, concubinage and the uncanonical marriage of the laity. The abbots of Cluny were constantly called to reform other monasteries; however, many reformed communities soon slipped back into their old ways. Odilo sought to prevent this by making them subject to Cluny: he appointed every prior of every Cluniac house, and the profession of every monk in the remotest monastery was made in his name and subject to his sanction. During his tenure thirty abbeys accepted Cluny as their mother house, and its practices were adopted by many more which did not affiliate. King Robert II of France allied himself with the Reform party. and the Cluniac reform spread through Burgundy, Provence, Auvergne, Poitou, and much of Italy and Spain. The English monastic reform undertaken by Dunstan, Æthelwold of Winchester and Oswald of Worcester under Cluniac influence is a conspicuous instance of Cluny's success by example. On account of his services in the reform Odilo was called by Fulbert of Chartres the "Archangel of the Monks". Truce of God The Truce of God arose in the eleventh century amid the anarchy of feudalism as a remedy for the powerlessness of lay authorities to enforce respect for the public peace. There was then an epidemic of private wars, which made Europe a battlefield bristling with fortified castles and overrun by armed bands who respected nothing, not even sanctuaries, clergy, or consecrated days. Massacres and plunders were common in that age, by the right which every petty lord pretended of revenging his own injuries and quarrels by private wars. Odilo actively promoted the Truce of God