The Queen And Senior Royals Attend The Commonwealth Heads Of Government Meeting - Day One [Getty Images]

ATTARD, MALTA - NOVEMBER 26: Prince Philip, Duke of Edinburgh, Queen Elizabeth II, Maltese President Marie Louise (R) Coleiro, Camilla, Duchess of Cornwall and Prince Charles, Prince of Wales attend an evening reception held in the grounds of the San Anton Palace on November 26, 2015 in Attard, Malta. (Photo by John Stillwell- WPA Pool/Getty Images)

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