THE mystery of a lost castle in the Wye Valley and the knight who lived there is to be unveiled on ITV1's The History Detectives on September 7 at 6pm.

Women's Institute members, Norma Rudge and Pam Jones will challenge the team to hunt for a long-lost castle at Foy, near Ross-on-Wye, and the French nobleman, John Tregoz who is thought to have owned it.