"Grant in tail male to the king's councillor, Richard Guldeford, knight for the king's body, of the lordship or manor of Higham, alais Iham, co. Sussex, and the increase there (accrescenciam maris), which said manor is worth 40s. a year, as appears of record in the Exchequer; to hold with liberties and the appurtenances thereof by fealty and the service of supporting a tower in a marsh of his near the port called 'le Camber' in Sussex, to be built at his own costs within two years from this date, for the defence of the laws and the king's subjects of the parts of Kent and Sussex against all rebels and enemies of the king navigating the sea there; and licence for him and his heirs at their will to build with stone, lime and sand walls and towers in the said marsh as well as around and in the said lordship or manor in the county of Sussex, and to crenellate such walls and towers."
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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