The Domesday Book of 1086 lists in the following order the tenants-in-chief in Devonshire of King William the Conqueror: Osbern FitzOsbern, Bishop of Exeter Geoffrey de Montbray, Bishop of Coutances Glastonbury Church, Somerset Tavistock Church, Devon Buckfast Church, Devon Horton Church, Dorset Cranborne Church, Dorset Battle Church, Sussex St Mary's Church, Rouen, Normandy Mont Saint-Michel Church, Normandy St Stephen's Church, Caen, Normandy Holy Trinity Church, Caen Hugh d'Avranches, 1st Earl of Chester Robert, Count of Mortain, half-brother of the king Baldwin de Moels, Sheriff of Devon, feudal baron of Okehampton, Juhel de Totnes, feudal baron of Totnes, Devon William de Mohun, feudal baron of Dunster, Somerset William Cheever,, feudal baron of Bradninch, Devon. Wikipedia