Photos being released days ahead of birthday . Prince William drove Duchess of Cambridge to hospital in unmarked minivan . Score: 6 The 9-month-old followed in the footsteps of his father , who was the first heir to be brought along on a royal trip at such a young age when his own parents toured Australia and New Zealand in 1983 . The royal baby 's nanny has been trained in self-defense .
Photos being released days ahead of birthday . Prince William drove Duchess of Cambridge to hospital in unmarked minivan . Score: 6 The royal baby 's nanny has been trained in self-defense .