John Spencer-Churchill, 10th Duke of Marlborough British Army officer and peer (1897-1972) (1897–1972) Parents Consuelo Vanderbilt Charles Spencer-Churchill, 9th Duke of Marlborough Children Lady Sarah Spencer-Churchill John Spencer-Churchill, 11th Duke of Marlborough Lady Rosemary Spencer-Churchill Lady Caroline Spencer-Churchill Lord Charles Spencer-Churchill Siblings Lord Ivor Spencer-Churchill Partners Mary Spencer-Churchill, Duchess of Marlborough Laura Spencer-Churchill, Duchess of Marlborough
