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.

Catherine, Princess of Wales, turns 43 on Jan. 9 and received a sweet message from her husband, Prince William.

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.

While Kate Middleton has since returned to the spotlight, Prince William was the face of their family in public and his wife's No. 1 champion at home while she underwent chemotherapy.

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 Kate Middleton on her 43rd birthday, lauding her resilience after a year marked by cancer treatment. William described her as a

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 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