In 1266 April 9, Henricus Husee (Henry Hussey) was granted, by Henry III, (In year 50 of his reign) a Royal licence to crenellate Hertinge (Harting Moat)

"Licence, at the instance of Edward the king's son ... a certain place in his manor of Hertinge:- wherever indeed in the said manor [he] may consider most expedient [quandum placeam apud manerium suum]- with a foss and wall of stone and lime, and to krenellate it at pleasure, and hold the place so fortified and krenellated for ever without penalty or impediment"

Granted at Windsor,

Original source is

• Calendar of Patent Rolls (1258-66) p580

(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;

• King, D.J.C., 1983, Castellarium Anglicanum (London: Kraus) Vol2 p479n58
  Elwes, Dudley George Cary, 1876, A history of the Castles, Mansions, and Manors of Western Sussex (London: Longmans) p113
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p403

More details about licences to crenellate can be found here.

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