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UNITED KINGDOM - JUNE 11: Queen Elizabeth II in an open carriage at Trooping the Colour parade, Behind her Prince Charles, Prince of Wales, Prince Philip, Duke of Edinburgh and The Duke of Kent follow (Photo by Tim Graham Photo Library via Getty Images)

UNITED KINGDOM - JUNE 11:  Queen Elizabeth II in an open carriage at Trooping the Colour parade, Behind her Prince Charles, Prince of Wales, Prince Philip, Duke of Edinburgh and The Duke of Kent follow  (Photo by Tim Graham Photo Library via Getty Images)