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.

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

The Princess of Wales’ 43 most fabulous looks on her 43rd birthday - As the Princess of Wales turns 43, Joe Bromley rounds up her 43 most dazzling dresses

Prince William and King Charles III share a deep bond as father and son but, like any relationship, they have their differences. These moments of friction reportedly arise due to t

Kate Middleton's 43rd birthday portrait was taken by Matt Porteous in Windsor Castle last summer. She is spending the day with Prince George, Princess Charlotte and Prince Louis.

Catherine, Princess of Wales celebrates her 43rd birthday on Thursday, seeking to turn the page on a turbulent year which saw her retreat from public life to fight cancer. Kate, as she is commonly known,

Family drama is inevitable, even for the royals, and Kate Middleton often takes it upon herself to help out when Prince William and King Charles 'don't see eye to eye'

Prince William is honoring his wife, Princess Catherine, on her 43rd birthday, calling her "the most incredible wife and mother."

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.