Prince George has a little sister. The royal baby was born at 8:34 a.m. local time (3:34 EST), after a quick delivery at the Lindo Wing of St. Mary’s hospital in West London. Prince William drove Kate to the hospital a little over two hours earlier. Both mother and baby are doing well, according to Kensington Palace statement. The girl, Queen Elizabeth II's fifth great-grandchild, is the first Princess of Cambridge to be born in over 180 years. She is fourth in line to the throne.