"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,

Princess Kate is celebrating her 43rd birthday. Her husband, Prince William, honored the "most incredible wife and mother" in a new post.

Prince William praised the strength of the Princess of Wales after a turbulent year, offering a 43rd birthday wish on social media that described her as an incredible wife and mother

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.

As for how Kate will commemorate the special day, a source close to the princess tells Vanity Fair that she will be spending her birthday with Prince William at Windsor. When the

The Prince of Wales said she is "the most incredible wife and mother" and included a message from their children.

Prince William penned a touching note to “incredible” Kate Middleton Thursday to celebrate her 43rd birthday, her first after finishing chemotherapy. The couple released Matt Porteous’ stunning black-and-white portrait of the Princess of Wales on their official Instagram account,