Aelred [Ailred, Ælred, Æthelred] was one of three sons (probably the youngest) of Eilaf, the last hereditary priest of St Andrew's Church, Hexham. He was born at Hexham in early 1110. After 1124 he is found at the court of David I of Scotland, later becoming the king's steward. In about 1134 he became a Cistercian monk at Rievaulx Abbey. He was made 'novice master' at Rievaulx after returning from Rome in 1142 and in 1143 he was appointed abbot of Revesby (Lincolnshire). He was elected to the abbacy of Rievaulx in 1147 and served there until his death on 12 January 1167. He was buried in the chapter house at Rievaulx though later translated to the church. Among some of his many written works were Vita Davidis Scotorum Regis (1153) and Vita S Eduardi regis et confessoris (1162-3).