Abbot of Cluny from 1049. Leo IX took Hugh into his confidence and as adviser to nine Popes he exercised a dominating influence on ecclesiastical and political affairs. He took part in securing the condemnation of Berengar of Tours (1050) and encouraged Gregory VII's efforts at reform. Under Hugh the monastery reached a position never surpassed; in 1095 Urban II in person consecrated the high altar of the new basilica at Cluny, then the largest church in Christendom. Feast day, 29 Apr.