The British  socialite and artist Rosemary Pratt married this Royal Air Force officer, flying ace, courtier and author who served as what to King George VI?
Rosemary Pratt, Marchioness Camden Rosemary Pratt, Marchioness Camden (9 May 1921 – 27 February 2004), born Cecil Rosemary Pawle, was a British socialite and artist, best known as the first wife of Group Captain Peter Townsend, who later became romantically involved with Princess Margaret of the United Kingdom.
Lady Dorothy Macmillan Lady Dorothy Evelyn Macmillan, {'1': ", '2': ", '3': ", '4': "} ("née" Cavendish; 28 July 1900 – 21 May 1966) was a daughter of Victor Cavendish, 9th Duke of Devonshire and Evelyn Cavendish, Duchess of Devonshire and the wife of the British Prime Minister Harold Macmillan.