Excavation by S Smith as part of research for a television documentary series entitled ‘Tywysogion’ on the Welsh princes c 900–1420. Documentary research indicated that Tatsfield was in the possession of Rhodri ap Gruffudd – brother of Llywelyn ap Gruffudd (Prince of Wales until his death in 1282) – and his descendants during the 14th century. The work consisted of the excavation of a number of test pits on possible earthworks, identified from aerial photograph and field survey observations, suggested as the remains of the medieval manor house of Tatsfield. A linear foundation cut, containing flint nodules and 14th century ceramic building material, and a small amount of prehistoric flint work