Ardross Castle plays home to the BBC series The Celebrity Traitors, which premiered on Wednesday night Euan Cherry In 1845, the 2nd Duke of Sutherland sold the estate to Sir Alexander Matheson, 1st Baronet, who commissioned an architect to redesign Ardross Castle in the Scots Baronial style. Their castle offered suitably dramatic interior for the dark thriller boasting a regal style banquet hall where the contestants enjoy breakfast each morning.