LONDON, UNITED KINGDOM - DECEMBER 20: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge accompanied by their children's (Prince George and Princess Charlotte) nanny Maria Teresa Borrallo (c) attend a Christmas lunch for members of the Royal Family hosted by Queen Elizabeth II at Buckingham Palace on December 20, 2017 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
