William celebrated Kate's "remarkable" strength in the post released on Thursday, Jan. 9 Prince William is celebrating his love and admiration for Kate Middleton as she marks her 43rd birthday. In a message posted to the couple's social media,

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.

Prince William wished his wife a happy birthday today in a touching personal message after an extremely challenging year. The message, posted on Instagram and X, was shared alongside a new photograph of Kate taken by Matt Porteous in Windsor last summer.

Kate Middleton's 43rd birthday portrait was taken by Matt Porteous in Windsor Castle last summer. She is spending the day with Prince George, Princess Charlotte and Prince Louis.

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.

Princess Kate has just turned 43 and to celebrate her birthday we are taking a look back at the stunning dress she wore on the cover of Vogue.

A Channel 5 documentary has looked back on Princess Kate's royal career touching on her brief split from Prince William.