High Quality Content by WIKIPEDIA articles! Walter John Francis Montagu Douglas Scott, Earl of Dalkeith (born 2 August 1984) is the second child and elder son of Richard Montagu Douglas Scott, 10th Duke of Buccleuch 12th Duke of Queensberry, and Lady Elizabeth Kerr, a daughter of Peter Kerr, 12th Marquess of Lothian and Antonella Reuss Newland. He is heir apparent to the Dukedoms of Buccleuch and Queensberry.