FILE - In this file photo dated Sept. 16, 1984, Britain's Prince William waves as he is led by Royal nanny Barbara Barnes from St. Mary's Hospital in Paddington, London, after visiting his mother, Princess Diana and her second baby, Prince Harry. On Saturday May 2, 2015, Prince William's wife Kate, the Duchess of Cambridge, gave birth to their second child, a daughter, at the same hospital where Princess Diana gave birth to both Prince William and Prince Harry, St. Mary's Hospital. (AP Photo)