Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. "Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT)," the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). / AFP PHOTO / Isabel INFANTES