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

Happy birthday, Kate Middleton! Inside the Princess of Wales' plans with Prince William, Prince George, Princess Charlotte ...

Kate Middleton's 43rd birthday portrait was taken by Matt Porteous in Windsor Castle last summer. She is spending the day ...

Happy Birthday to Kate Middleton. The Princess of Wales officially turned 43 on Thursday, January 9 and the love is pouring ...

Kate Middleton is celebrating her 43rd birthday by putting herself first. Less than one year after revealing her cancer ...

Christopher Furlong/Getty Images Princess Kate Middleton was fully thrust into the spotlight when she and Prince William ...

In honour of Kate Middleton's 43rd birthday, William has taken to Instagram with an uncharacteristically personal message for ...

Kate Middleton are poised to be Queen of England sometime in the future, and apparently King Charles and Queen Camilla have zero interest in giving her advice on the matter.

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

Prince William issues a new portrait and heartfelt message to wife Kate Middleton as she marks her 43rd birthday, writing "we love you" ...

The past year has brought about a lot of change for the British royal family members, particularly Kate Middleton. The Princess of Wales, who turns 43 today, underwent abdominal surgery, dealt with ...

Kate Middleton dressed down in jeans and a blazer in Prince William's 43rd birthday tribute to her, posted on Instagram. See her outfit here.