In 1329 Jan 25, Robertus de Arden [Ardern] was granted, by Edward III, (In year 3 of his reign) a Royal licence to crenellate Dratton (Drayton)

"Licence for Robert de Ardern to creiiellate his dwelling houses (mansum suum) of Dratton, co- Oxford, and Perchyng, co. Sussex."

Granted at St. Albans, by privy seal.

Licence given along with Perching, Sussex. King writes nothing known of Dratton but presumably this is Drayton near Banbury where Robert de Arden was granted a charter for a fair on 3 Feb 1329.

Original source is

• Calendar of Patent Rolls (1327-30) p357

(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
  King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol2 p479n54
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p409

More details about licences to crenellate can be found here.

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