LONDON, UNITED KINGDOM - JUNE 13: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Camilla, Duchess of Cornwall and Prince Charles, Prince of Wales stand on the balcony of Buckingham Palace during Trooping the Colour on June 13, 2015 in London, England. The ceremony is Queen Elizabeth II's annual birthday parade and dates back to the time of Charles II in the 17th Century, when the Colours of a regiment were used as a rallying point in battle. (Photo by Max Mumby/Indigo/Getty Images)
