Lord Charles Spencer-Churchill (1940-2016); youngest child of John Spencer-Churchill, 10th Duke of Marlborough (1940–2016) Parents Mary Spencer-Churchill, Duchess of Marlborough John Spencer-Churchill, 10th Duke of Marlborough Children Dominic Spencer-Churchill Alexander Spencer-Churchill Rupert Spencer-Churchill Siblings Lady Rosemary Spencer-Churchill John Spencer-Churchill, 11th Duke of Marlborough Lady Caroline Spencer-Churchill Lady Sarah Spencer-Churchill Partners Elizabeth Wyndham Sarah Goodbody Gillian Spreckels Fuller