LONDON, ENGLAND - MAY 02: Prince William, Duke of Cambridge departs the Lindo Wing following the birth his second child at St Mary's Hospital on May 2, 2015 in London, England. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - MAY 02: Prince William, Duke of Cambridge departs the Lindo Wing following the birth his second child at St Mary's Hospital on May 2, 2015 in London, England. (Photo by Samir Hussein/WireImage)