1926 Birthday John George Vanderbilt Henry Spencer-Churchill, Duke of Marlborough, born in England, 11th Duke of Marlborough, justice of the peace, cousin of Sir Winston Churchill 1926 Birthday 11th duke of Marlborough, English large landowner 1722 Death John Churchill up Marlborough, English general strategist, dies at 72 1711 Event Duke of Marlborough fired as English army commander 1704 Event Duke of Marlborough beats French and Bavarians at Blenheim 1702 Event English/Dutch troops under Marlborough occupy Roermond 1650 Birthday John Churchill, 1st duke of Marlborough, English general strategist