LONDON, ENGLAND - JUNE 13: Prince George of Cambridge is held by Prince William, Duke of Cambridge as they look out from the balcony of Buckingham Palace during the 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 Chris Jackson/Getty Images)
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