King Charles and Queen Camilla send special birthday message to Princess Kate

William's touching hand-written message to Kate as she celebrates birthday - along with unseen picture

William in emotional message to Kate as new photo shared to mark 43rd birthday

New Princess Kate photo released on her birthday as Prince William shares personal message

Prince William shares photo of Kate and loving message to mark her birthday

Pictured: Unseen photograph of Princess of Wales to mark her birthday

Prince William wishes Catherine happy birthday, saying he and their children "so proud" of her as he shares new photo