Granted at Westminster. . Grant by privy seal at the supplication of the king's kinsman, Peter de Courteney, knight.

Original source is;

• Lyte, H.C. Maxwell (ed), 1897, Calendar of Patent Rolls (1381-85) p. 326 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. 440
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol. 3 part 2 p. 419 online copy

John de Cobham (d. 1399)

Biographical source include;

• Roskell, J.S., Clark, Linda and Rawcliffe, Carole, 1992, The House of Commons 1386-1421 (History of Parliament Trust) Vol. 2 p. 607-8