LONDON, ENGLAND - JUNE 11: Zara Phillips, Princess Anne, The Princess Royal, Camilla, Duchess of Cornwall, Prince Charles, Prince of Wales, Catherine, Duchess of Cambridge, Princess Charlotte, Prince George and Prince William, Duke of Cambridge stand on the balcony of Buckingham Palace during the Trooping the Colour, this year marking the Queen's 90th birthday at The Mall on June 11, 2016 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 Zak Hussein - Corbis/Corbis via Getty Images)
