"Licence for Warin de Bassingburn and his heirs to enclose his houses (domum suam) of Bassingburn co. Cambridge and Esteleye, co. Warwick, with a dyke and wall of stone and lime and to crenellate the same and keep them so in perpetuity."
Granted at Kenilworth,
licensed with Astley Warks.
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.
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