This study examines the life of Henry of Winchester (c.1099-1171) and his relation to the development of the English church in the twelfth century. It presents the case for considering Henry's close association to Cluniac monasticism and speaks to some of the tensions which existed between Henry and St Bernard of Clairvaux. It focuses primarily on Henry's contribution to the ecclesiastical reform movement and his importance as a leading figure in ecclesiastical government during the crisis of King Stephen's reign (1135-1154). In addition, it considers Henry's role as one of the twelfth century's most prominent art patrons. By considering his activities as monk, bishop, statesman and art patron, this study shows how Henry of Winchester was a prominent force in religious and secular life during a period of political unrest and ecclesiastical change.