"Whereas the king's councillor William Petre, knight, one of the two principal secretaries, lately began to enclose and impark of his own lands a certain several ground heretofore usually inclosed with hedges within the parishes of Ingat Stone alias Ging ad Petram, Gingmounteney, and Buttesbury, Essex, containing 300 ac., with the king's licence to make a park of it for deer; and whereas the said William has caused his house within the foresaid ground to be embattled and made with battlements:
Licence to the said William, without fine or fee to the king, to make the said park and have free warren in it provided that the lands are not within the bounds of the king's forest; also to embattle the said house; and pardon of any trespasses done in the above."
Granted at Westminster, by privy seal.
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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