George Spencer-Churchill, 5th Duke of Marlborough British politician (1766-1840) (1766–1840) Parents Caroline Spencer, Duchess of Marlborough George Spencer, 4th Duke of Marlborough Children Lord Charles Spencer-Churchill Henry John Spencer Churchill George Henry Spencer-Churchill George Spencer-Churchill, 6th Duke of Marlborough Siblings Henry John Spencer Francis Spencer, 1st Baron Churchill Lady Anne Spencer Lady Amelia Spencer Caroline Agar-Ellis, Viscountess Clifden Lady Elizabeth Spencer Charlotte Spencer Partners Lady Mary Anne Ashley-Cooper Susan Spencer-Churchill, Duchess of Marlborough
