WINDSOR, UNITED KINGDOM - NOVEMBER 20: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge arrive at Windsor Castle to attend Queen Elizabeth II's and Prince Philip, Duke of Edinburgh's 70th wedding anniversary dinner on November 20, 2017 in Windsor, England. (Photo by Max Mumby/Indigo/Getty Images)
