Granted at Linlithgow. Grant by privy seal.

Original source is;

• Lyte, H.C. Maxwell (ed), 1895, Calendar of Patent Rolls (1334-38) p. 166 online copy

(In fact, the original source given is usually a transcription/translation of what are precious medieval documents not readily availably. It should be noted that these transcription/translations often date to the nineteenth or early twentieth centuries and that unwitting bias of transcribers may affect the translation. Care should also be taken to avoid giving modern meaning to the medieval use of certain stock words and terms. Licentia is best translated as 'freedom to' not 'permission'.)

Significant later sources are;

• Emery, Anthony, 2006, Greater Medieval Houses Vol. 3 (Cambridge) p. 695
  Higham, R. A., 1988, 'Devon Castles: an annotated list' Proceedings of the Devon Archaeological Society Vol. 46 p. 146
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol. 3 part 2 p. 411 online copy

John de Ocle

Biographical source include;

• Johnstone, Hilda, 1936, 'John de Ocle, Envoy of Edward I, and Some of His Colleagues' Speculum Vol. 11, No. 2 p. 212-224