The Domesday Book of 1086 lists in the following order the tenants-in-chief in Devonshire of King William the Conqueror:

• Osbern FitzOsbern (died 1103), Bishop of Exeter
• Geoffrey de Montbray (died 1093), 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 (died 1101)
• Robert, Count of Mortain (died 1090), half-brother of the king
• Baldwin de Moels (died 1090), Sheriff of Devon, feudal baron of Okehampton,^[1]
• Juhel de Totnes (died 1123/30), feudal baron of Totnes,^[2] Devon
• William de Mohun (died post 1090), feudal baron of Dunster,^[3] Somerset
• William Cheever, (Latinised to Capra, "she-goat"), feudal baron of Bradninch, Devon. He was brother of Ralph de Pomeroy (see below), feudal baron of Berry Pomeroy^[4] Devon
• William de Falaise, feudal baron of Stogursey,^[5] Somerset
• William de Poilley, whose lands later formed part of the Feudal barony of Plympton^[6]
• William II, Count of Eu (died 1097)
• Walter of Douai (died c. 1107), Feudal baron of Bampton, Devon^[7]
• Walter de Claville, brother of Gotshelm; his lands later formed part of the Feudal barony of Gloucester^[8]
• Gotshelm, brother of Walter de Claville; his lands later formed part of the Feudal barony of Gloucester^[9]
• Richard fitz Gilbert (died c. 1090), elder brother of Baldwin de Moels, Sheriff of Devon, feudal baron of Okehampton,^[10]
• Roger de Busli (died c. 1099)
• Robert of Aumale (Latinised to de Albemarle); his lands later formed part of the Feudal barony of Plympton^[11]
• Robert Bastard, whose lands later formed part of the Feudal barony of Plympton^[12]
• Richard Fitz Turold (died post 1103-6) (alias fitzThorold, fitzTurolf), whose lands later formed part of the Feudal barony of Cardinham,^[13] Cornwall
• Ralph de Limesy, most of his Devon manors passed to the Feudal barony of Bradninch^[14]
• Ralph Pagnell
• Ralph de Feugeres
• Ralph de Pomeroy, feudal baron of Berry Pomeroy, brother of William Cheever, feudal baron of Bradninch
• Roald Dubbed, whose lands later formed part of the Feudal barony of Plympton^[15]
• Theobald FitzBerner, whose lands later formed part of the Feudal barony of Great Torrington. He was the father-in-law of Odo FitzGamelin^[16]
• Turstin FitzRolf, feudal baron of North Cadbury, Somerset^[17]
• Alfred of Spain
• Alfred the Breton
• Ansger
• Aiulf
• Odo FitzGamelin, son-in-law of Theobald FitzBerner.^[18] His lands later formed part of the Feudal barony of Great Torrington.^[19]
• Osbern of Sacey
• The wife of Hervey of Hellean
• Gerald the Chaplain
• Gerard
• Godbold
• Nicholas the Bowman (or "Nicholas the Gunner")
• Fulchere ("Fulchere the Bowman"), most of his lands later became part of the feudal barony of Plympton^[20]
• Haimeric
• King's Servants
• King's Thanes