LONDON, ENGLAND - OCTOBER 23:  Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge talk to Queen Elizabeth II (obscured) as they arrive, holding their son Prince George, at Chapel Royal in St James's Palace, ahead of the christening of the three month-old Prince George of Cambridge by the Archbishop of Canterbury on October 23, 2013 in London, England. (Photo by John Stillwell - WPA Pool /Getty Images)