Norwegian Royals State Visit to the United Kingdom - October 25, 2005 [Getty Images]

Prince Philip, Duke of Edinburgh, Queen Elizabeth ll, Queen Sonja, King Harald V of Norway, Camilla, Duchess of Cornwall and Charles, Prince of Wales pose before the banquet for the Norwegian Royal Family at Buckingham Palace on October 25, 2005 in London, England. The visit is to mark 100 years of Norway's independence from Sweden. (Photo by Anwar Hussein Collection/ROTA/WireImage)

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Guests listen during a speech by Britain's Queen Elizabeth II in honour of the President of Ireland Michael D. Higgins at the State Banquet during the Irish president's state visit in Windsor, west of London, on April 8, 2014. Queen Elizabeth II welcomed the Irish president to Britain on Tuesday for the first time since the republic became independent with a banquet also controversially attended by former IRA commander Martin Guinness. AFP PHOTO / POOL / DAN KITWOOD (Photo credit should read Dan Kitwood/AFP/Getty Images)

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WINDSOR, UNITED KINGDOM - APRIL 23: Lech Walesa and his wife Danuta Walesa pose with Queen Elizabeth ll, Queen Elizabeth, the Queen Mother and Prince Philip, Duke of Edinburgh before a banquet at Windsor Castle during a State Visit on April 23 1991 in Windsor, England. (Photo by Anwar Hussein/Getty Images)

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