Born His Royal Highness Prince Louis Arthur Charles of Cambridge, Louis is the third and youngest child of Prince William and Princess Kate, and the younger brother of Prince George and Princess ...

‘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.

The Duke of York title is traditionally granted to the monarch's second son, which in the case of Prince William, is Prince Louis. Prince Harry was not given the dukedom at the time of his marriage ...