An early ancestor, Guy de la Val I, built a castle there in the first half of the eleventh century.
The Delaval surname died out on at least two occasions in the Middle Ages, but was re-adopted by lords of Seaton presumably because of the prestige attached to its Norman-French sound.
Edward Astley, 22nd Baron Hastings, a considerable landowner, spent many years restoring the Hall, before it became his permanent home until his death in 2007.
His son and heir, Delaval Astley, 23rd Baron Hastings, faced with high death duties, sold the Hall to the National Trust.
Many of the paintings are in the National Trust and located at Seaton Delaval Hall, which descended into the Astley line through her son Jacob.