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

The Prince of Wales posted a birthday message for his wife, Catherine, Princess of Wales to social media on Thursday to celebrate her 43rd birthday.

Prince William pays tribute to ‘incredible wife’ Kate Middleton as princess turns 43 - Princess celebrating birthday at home after a challenging past 12 months

The Princess of Wales said her cancer diagnosis came as a "huge shock." Kate Middleton and Prince William share three kids: George, Charlotte and Louis.

Catherine, Princess of Wales, revealed last March that she had been diagnosed with an unspecified cancer and was undergoing chemotherapy.

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.

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 took to social media to share an extremely personal message to his wife Kate as she celebrates her 43rd birthday today along with a brand new beautiful picture of her

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

The Princess of Wales is celebrating at home in Windsor with the Prince of Wales, with Prince George, Princess Charlotte and Prince Louis spending the day at school before a family celebration in the evening.

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.