During the mid 14th century the manor was held by Rhodri ap Gruffudd, brother of the last native Prince of Wales, and his descendants. Thomas Retherick's heir was his son Owen, also called 'de Gales' (of Wales), who in 1366, during the war with France, left England to join the king's enemies in that country, and before going likewise released all his right in the reversion of the manor to Roger de Stanyngden and his heirs. Thus in 1392 a grant of the manor of Tatsfield, which was alleged to have been long-concealed, was made by the Crown to John Maudelyn.