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.

"Father and son don’t always see eye to eye." Kate Middleton is the saving grace of the monarchy in more ways than one. In addition to pushing through her cancer diagnosis and showing up at royal events while she received chemotherapy,

King Charles and Queen Camilla are wishing Kate Middleton a happy birthday! See the royal couple's tribute as the Princess of Wales turns 43.