In 1322 Jan 22, Robertus Lewer, dilectus valectus noster was granted, by Edward II, (In year 15 of his reign) a Royal licence to crenellate Westbury, Sutht (Westbury Manor)

"Licence for Robert Lewer, king's yeoman, to crenellate his dwelling place (mansum) of Westbury, co. Southampton."

Granted at Shrewsbury, by privy seal.

Parker footnotes "Southampton probably an error in the Roll, for Wiltshire." Emery places this at East Meon, Hants. However In 1327, Margery Lewer brought an action against Ralph de Camoys to recover her late husband's Manor of Westbury, Bucks, which she pleaded had been unjustly seized by him after her husband's attainder in the previous reign. Ralph produced in defence a charter of Edward II, dated 1324, granting Westbury to him and his wife Elizabeth with remainder to their sons Hugh, but Margery having proved that he had obtained unjust possession of Westbury long before that date, judgement was given in her favour. There is a Westbury Manor, with a moat at Marsh Gibbon, Bucks SP64492289 and I believe this is prossible the site for this licence.

Original source is

• Calendar of Patent Rolls (1321-24) p52

(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) p439
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p408

More details about licences to crenellate can be found here.

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