"quandam mansionem in hospitio suo infra clausum domus fratrum ordinis carmelis London. muro ... kernellare ... et eandem mansionem sic, ... kernellatam teneri possit eidem Matill. ad totam vitam suam et post decessum suum praefatis fratribus ad quos praedicta mansio pertinebit in perpetuum ..."
Granted at Westminster, by privy seal.
Matilda de Well had licence to crenellate a dwelling in her lodging within the close of the Carmelite Friars issued 26 Oct 1385. The friars were to retain the building, and licence, after her death. Coulson writes that any link between this license and the sacking of the, nearby, Savoy Palace in 1381 "seems improbable".
Original source is
(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;
More details about licences to crenellate can be found here.
Please let me know if you see any errors, can add information or can otherwise help to improve this resource. Contact me