ALDERSHOT, UNITED KINGDOM - MARCH 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose for a regimental photograph as they attend the annual St Patrick's Day Parade at Mons Barracks on March 17, 2015 in Aldershot, England. (Photo by Max Mumby/Indigo/Getty Images)
