In the photo, Louis, who is the fourth in line to the British throne ... that this picture has not been edited. "Happy 6th Birthday, Prince Louis! Thank you for all the kind wishes today," said ...

and the younger brother of Prince George and Princess Charlotte. His middle name is a tribute to his grandfather King Charles. As a member of the British royal family, Louis is fourth-in-line to ...

Is Prince Louis beginning his photography ... "George, Charlotte, Louis and I are so proud of you. Happy Birthday, Catherine. We love you." ...