The Duke of Westminster of the Grosvenor family that dates to at least the 14th century is a major landowner in London, especially Belgravia and Mayfair. An ancestor married a woman in 1677 who had 500 acres on what was then the outskirts of London. Among his properties is the land on which the U.S. Embassy sits at Grosvenor square. The rent is one peppercorn. A recent U.S. Ambassador gave the Duke a gold peppercorn, apparently satisfying the rent for some years...

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