 She was a cousin (and life-long close friend) of Edwina Ashley, who married Lord Louis Mountbatten, 1st Earl Mountbatten of Burma.She married John Pratt, Earl of Brecknock, eldest son of John Pratt, 4th Marquess Camden, and his wife, the former Lady Joan Marion Nevill, on 19 October 1920 in St. Margaret's Church, Westminster, London.They had at least two children