Kate Middleton, who is celebrating her 43rd birthday on Jan. 9, has proven herself to be the shiniest jewel of the British monarchy. The princess is married to Prince William, heir to the throne.

King Charles and Queen Camilla are wishing Kate Middleton a happy birthday! See the royal couple's tribute as the Princess of Wales turns 43.

The Prince of Wales wrote that he and the couple’s three kids — Prince George, Princess Charlotte and Prince Louis — “are so proud” of Middleton.

Prince William praised the 'strength' of his wife, Kate Middleton, in a romantic birthday message posted to Instagram. She turns 43 on Jan. 9.

Prince William may have put pressure on King Charles III to let him skip a landmark event so the Royal Family can still celebrate Kate Middleton's birthday, as the Princess of Wale

Prince William praised the strength of the Princess of Wales after a turbulent year, offering a 43rd birthday wish on social media on Thursday that described her as an incredible wife and mother.

The royal family has wished the Princess of Wales a happy day, with a message reading: ‘Happy Birthday to The Princess of Wales!’ The X account also shared a photo of Kate smi