LONDON - MAY 5: The birth certificate of Princess Charlotte of Cambridge which was signed by her father, the Duke of Cambridge at Kensington Palace and witnessed by a Registrar from Westminster Register Office, on May 5, 2015 in London, England. The Duchess of Cambridge gave birth to a daughter at 8:34am on May 2nd weighing 8lbs 3oz who will be fourth in line to the throne. (Photo by John Stillwell - WPA Pool/Getty Images)
