News / Scottish News Royal baby name: Duke and Duchess of Cambridge call their son Louis Arthur Charles By The Sunday Post April 27, 2018, 11:07 am The Duke and Duchess of Cambridge leaving the St Mary's Hospital, with their newborn son (John Stillwell/PA Wire) Get a weekly round-up of stories from The Sunday Post: Thank you for signing up to our Sunday Post newsletter. Something went wrong - please try again later. Sign Up THE Duke and Duchess of Cambridge had revealed the name of their third child. The Duke and Duchess of Cambridge are delighted to announce that they have named their son Louis Arthur Charles. The baby will be known as His Royal Highness Prince Louis of Cambridge. pic.twitter.com/4DUwsLv5JQ — Kensington Palace (@KensingtonRoyal) April 27, 2018 The baby, born on Monday, has been named Louis Arthur Charles. He’ll be known as His Royal Highness Prince Louis of Cambridge. Enjoy the convenience of having The Sunday Post delivered as a digital ePaper straight to your smartphone, tablet or computer. Subscribe for only £5.49 a month and enjoy all the benefits of the printed paper as a digital replica. Subscribe