Mary Montagu Douglas Scott, Duchess of Buccleuch
Mary Montagu Douglas Scott, Duchess of Buccleuch and Queensberry, was the elder of the two daughters of Major William Frank Lascelles and Lady Sybil Evelyn de Vere Beauclerk.
On 21 April 1921 she married Walter Montagu Douglas Scott, 8th Duke of Buccleuch and 10th Duke of Queensberry; she was styled "Duchess of Buccleuch" from 19 October 1935. They had three children:
The Duchess died aged 92 at Boughton House on 9 February 1993. She was buried next to her husband among the ruins of Melrose Abbey.
