Consuelo Vanderbilt American socialite (1877-1964) (1877–1964) Parents Alva Belmont William Kissam Vanderbilt I Children Lord Ivor Spencer-Churchill John Spencer-Churchill, 10th Duke of Marlborough Siblings Harold Stirling Vanderbilt William Kissam Vanderbilt II Partners Winthrop Rutherfurd Charles Spencer-Churchill, 9th Duke of Marlborough Jacques Balsan
