1986: 216, 241–243. ISBN 0-521-56350-X. Greenway, D. E. Bishops of Durham. Fasti Ecclesiae Anglicanae 1066–1300: Volume 2: Monastic Cathedrals (Northern
397, 405. ISBN 0-521-56350-X. Cotton, Henry. The Province of Munster. Fasti Ecclesiae Hiberniae: The Succession of the Prelates and Members of the Cathedral
ISBN 0-521-56350-X. Greenway, D. E. St. Paul's, London. British History Online. Fasti Ecclesiae Anglicanae 1066–1300 1 (London: Institute of Historical Research)