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 lovingly paid tribute to the Princess of Wales's 'remarkable' strength as he shared a touching birthday post

Catherine, Princess of Wales, turned 43 on Thursday, with her husband Prince William praising her "strength" fighting cancer during the past year.

Bigger than the shift in how Kate will approach the logistics of her schedule, however, is the shift in the Wales' priorities going forward—and how they'll approach their dual roles as working royals and devoted parents to their three children, Prince George, 11, Princess Charlotte, 9, and Prince Louis, 6.

Prince William has shared a loving tribute to Kate Middleton. We'll be bringing you the very latest updates, pictures and video on this breaking news story. Please check back regularly for updates on this developing story HERE .

Kate Middleton is putting herself first as she rings in her birthday four months after announcing that she completed chemotherapy treatment for an undisclosed form of cancer. The Princess of Wales turned 43 on Jan.

Kate Middleton is 43! The Princess of Wales is celebrating her birthday surrounded by those nearest and dearest to her on Thursday, The Post can reveal. While Princess Catherine has spent much of her time at Sandringham Estate in Norfolk,

Now, let’s be real—43 isn’t exactly one of those milestone birthdays where you throw confetti and pop champagne for days, but it’s still a birthday, and that’s always worth celebrating. The Princess of Wales is famous for keeping things pretty chill on her special day,