"Pro Roberto de Tatteshal.—Rex concessit Roberto de Tatteshal quod libere et sine inpedimento unam domum de petra et calce firmari faciat apud manerium suum de Tateshal. In cujus etc.Teste rege, apud Hereford, xxj die Maii.
freely and without hindrance to have fortified at his manor of Tattershall a house of stone and lime"
Granted at Hereford, by King.
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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