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Britain's Princess Beatrice of York (L), Britain's Princess Eugenie of York (2nd L), Britain's Catherine, Duchess of Cambridge (C), Britain's Prince William, Duke of Cambridge (3rd R), Britain's Queen Elizabeth II (2nd R) and Britain's Prince Philip, Duke of Edinburgh (R) arrive to greet guests attending a garden party at Buckingham Palace in London on May 24, 2016. / AFP / POOL / John Stillwell (Photo credit should read JOHN STILLWELL/AFP/Getty Images)

Britain's Princess Beatrice of York (L), Britain's Princess Eugenie of York (2nd L), Britain's Catherine, Duchess of Cambridge (C), Britain's Prince William, Duke of Cambridge (3rd R), Britain's Queen Elizabeth II (2nd R) and Britain's Prince Philip, Duke of Edinburgh (R) arrive to greet guests attending a garden party at Buckingham Palace in London on May 24, 2016. / AFP / POOL / John Stillwell        (Photo credit should read JOHN STILLWELL/AFP/Getty Images)