Charles Spencer, 3rd Duke of Marlborough British Army general (1706-1758) (1706–1758) Parents Anne Churchill, Countess of Sunderland Charles Spencer, 3rd Earl of Sunderland Children Elizabeth Herbert, Countess of Pembroke and Montgomery Diana Beauclerk Lord Robert Spencer Lord Charles Spencer George Spencer, 4th Duke of Marlborough Siblings Diana Spencer, Duchess of Bedford Robert Spencer, 4th Earl of Sunderland Anne Bateman, Viscountess Bateman John Spencer Robert Spencer unnamed child Spencer William Spencer unnamed child Spencer Lady Frances Spencer Partners Elizabeth Spencer, Duchess of Marlborough
