How Kate Middleton parents the Cambridge kids and stops tantrums from code words to head taps The Duchess of Cambridge has a few parenting tricks up her sleeve to keep Prince George, 7, Princess Charlotte, 6, and Prince Louis, 3, in check. The video will auto-play soon8Cancel Play now Get daily celeb exclusives and behind the scenes house tours direct to your inboxInvalid EmailSomething went wrong, please try again later. Sign up When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice