Catherine, Duchess of Cambridge (L) waves as she is driven by her husband, WIlliam, the Duke of Cambridge away from Lindo Wing of St Mary's Hospital in London on July 23, 2013. Her baby was born on Monday afternoon weighing eight pounds six ounces (3.8 kilogrammes). The baby, titled His Royal Highness, Prince (name) of Cambridge, is directly in line to inherit the throne after Charles, Queen Elizabeth II's eldest son and heir, and his eldest son William. AFP PHOTO / ANDREW COWIE