In 1338 March 3, Nicholaus de la Beche was granted, by Edward III, (In year 12 of his reign) a Royal licence to crenellate La Beche (Aldworth, De La Beche)

"Licence for Nicholas de la Beche to crenellate the dwelling-placei of his manors (mansum manerii) of la Beche, Beaumeys and Watlyngton."

Granted at Tower of London, by privy seal.

Licensed with Watlington and Beaumys.

Original source is

• Calendar of Patent Rolls (1338-40) p24

(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.)

Significant later source are;

• Emery, Anthony, 2006, Greater Medieval Houses Vol3 (Cambridge) p211
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p412
  King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol1 p12n25

More details about licences to crenellate can be found here.

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