About John Spencer-Churchill, 11th Duke of Marlborough
John George Vanderbilt Henry Spencer-Churchill, 11th Duke of Marlborough (13 April 1926 – 16 October 2014), styled Earl of Sunderland until 1934 and Marquess of Blandford between 1934 and 1972, was a British Army officer and peer. He was the elder son of the 10th Duke of Marlborough and his wife, the Hon. Mary Cadogan. He was known as "Sunny" after his childhood courtesy title of Earl of Sunderland. His principal seat was Blenheim Palace, Woodstock, Oxfordshire. He was ranked 224th in the Sunday Times Rich List 2004, with an estimated wealth of £185 million. == Early life == Sunderland was born on 13 April 1926 at 1 Portman Square, Marylebone, his parent's London home. He was the elder son of the then Marquess of Blandford (later 10th Duke of Marlborough), and the Hon. Mary Cadogan. He was christened on 31 May at St Margaret's, Westminster.
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