Britain's Princess Anne, Princess Royal, greets guests at a garden party at Buckingham Palace in London on May 16, 2017. / AFP PHOTO / POOL / Victoria Jones (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge, (R) greets guests at a garden party at Buckingham Palace in London on May 16, 2017. / AFP PHOTO / POOL / Victoria Jones (Photo credit should read VICTORIA JONES/AFP via Getty Images)
LONDON, ENGLAND - MAY 16: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge at a garden party at Buckingham Palace on May 16, 2017 in London, England. (Photo by Victoria Jones - WPA Pool /Getty Images)
Britain's Princess Beatrice of York (R) greets guests at a garden party at Buckingham Palace in London on May 16, 2017. / AFP PHOTO / POOL / Victoria Jones (Photo credit should read VICTORIA JONES/AFP/Getty Images)
Britain's Princess Michael of Kent (C) talks with guests at a garden party at Buckingham Palace in London on May 16, 2017. / AFP PHOTO / POOL / Victoria Jones (Photo credit should read VICTORIA JONES/AFP via Getty Images)
