The Princess of Wales was with her family on her special day. Catherine, who turn 43 on Thursday, Jan. 9, spent her birthday at home at Adelaide Cottage, Windsor with her husband, the Prince of Wales,

Kate, the Princess of Wales, turns 43 on Thursday, capping what was a tumultuous year for the mother of three and wife of Prince William. Kate, who was born Jan. 9, 1982, is expected to spend her birthday privately with William and their kids -- Princes George and Louis and Princess Charlotte -- at home in Windsor, England.

Prince William. “To the most incredible wife and mother. The strength you’ve shown over the last year has been remarkable. George, Charlotte, Louis and I are so proud of you. Happy Birthday, Catherine.

After a challenging year, Prince William has shared a moving tribute to his wife, Kate Middleton, on her 43rd birthday describing her as “the most incredible wife and mother,” alongside a new portrait.

Prince William penned a touching tribute Thursday to “remarkable” wife Kate Middleton as the royal celebrates her 43rd birthday, four months to the day after announcing she was

Since she became the Princess of Wales, Kate Middleton has worn playful pantsuits and a plethora of polka dots.

Kate Middleton is celebrating her 43rd birthday by putting herself first. Less than one year after revealing her cancer diagnosis, the Princess of Wales is finding the balance between her health and work.