LONDON, UNITED KINGDOM - JUNE 15: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Princess Eugenie of York, Prince Andrew, Duke of York and Princess Beatrice of York stand on the balcony of Buckingham Palace during the annual Trooping the Colour Ceremony on June 15, 2013 in London, England. Today's ceremony which marks the Queen's official birthday will not be attended by Prince Philip the Duke of Edinburgh as he recuperates from abdominal surgery. This will also be The Duchess of Cambridge's last public engagement before her baby is due to be born next month. (Photo by Max Mumby/Indigo/Getty Images)