In 1337 Aug 30, Robert, Episcopus Sarum (Bishop Erghum) was granted, by Edward III, (In year 11 of his reign) a Royal licence to crenellate Flet-strete (Salisbury Court, Fleet Street)

"Licence for Robert, bishop of Salisbury, to crenellate the dwelling-places of his manors (mansum manerii) of Salisbury, Wodeford Bishops, Shireburn, Cherdestok, Poterne, Cannyngges, Remmesbury and Sonnyng, and of the manor (manerium) of Fletstrete, London."

Granted at Westminster, by privy seal.

Licensed in 1337 and licence ratified in 1377. A licence for multiple properties of the bishop.

Original source is

• Calendar of Patent Rolls (1334-38) p498

(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
  Coulson, C., 1995, 'Battlements and the Bourgeoisie: Municipal Status and the Apparatus of Urban Defence' in Church, Stephen (ed), Medieval Knighthood Vol. 5 (Boydell) p194n297
  Thompson, M.W., 1998, Medieval bishops' houses in England and Wales (Aldershot: Ashgate Publishing) p167
  Turner, T.H. and Parker, J.H., 1859, Some account of Domestic Architecture in England (Oxford) Vol3 pt2 p412

More details about licences to crenellate can be found here.

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