Rosita Spencer-Churchill, Duchess of Marlborough (born 26 September 1943 Madrid) is a British artist and third (and former wife) of John Spencer-Churchill, 11th Duke of Marlborough.
Rosita Spencer-Churchill, Duchess of Marlborough (born 26 September 1943) is a British artist. She became the third wife of John Spencer-Churchill, 11th Duke of Marlborough on 20 May 1972, whereupon she became The Duchess of Marlborough.