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The Duke of Westminster

Westminster, 55, steps down as chairman of his Grosvenor Group property company this week. His portfolio includes estates in Lancashire and Cheshire, 300 London acres including Mayfair and Belgravia, and land in Scotland and Canada. Grosvenor profits rose 23% to £508m in 2006 and it manages assets of £11 billion. About 200 acres of Belgravia are held in family trusts, worth about £4 billion. Adding dividends, further property, land and art takes him to £7 billion.