In 791 (or possibly in the preceding year) Offa, the King of Mercia, gave lands at Otford to Christ Church Canterbury (the ‘vill by the name of Otford’).
This was a very significant gift. It meant that the Monastery of Christ Church Canterbury and subsequently the Archbishops of Canterbury became the Lords of the Manor of Otford. The size of this piece of land was not recorded.
(Dunlop, J. (1964) The pleasant town of Sevenoaks).