Kate Middleton, who turns 43 on Jan. 9, 2025, shares Prince George, Princess Charlotte and Prince Louis with husband Prince William. See the royals' sweet family photos here.

Prince William wished his wife, Catherine, Princess of Wales, a happy 43rd birthday in a sweet message posted on X.

It’s an unusually personal message from the prince, but one that chimes with the Waleses’ newfound candor following the princess’s cancer diagnosis and recovery over the course of 2024.

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.

William praised Kate for her "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,

Prince William publicly hailed his wife Kate as 'incredible' in an emotional statement to mark her 43rd birthday today along with releasing a brand new picture of the princess - and one royal expert e

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 is celebrating Kate Middleton on her 43rd birthday. In a break with palace tradition, the Prince of Wales wrote a personal, heartfelt message in honor of his wife's special day alongside a new photo of the princess on Instagram.

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.