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.

The Prince of Wales has wished his wife, Catherine, a happy birthday as she turns 43. "To the most incredible wife and mother. The strength you've shown over the last year has been remarkable," William wrote in a message posted on social media.

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

The Prince of Wales shared a new picture and described his wife as 'remarkable' in a touching birthday tribute on Instagram.

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

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

Kate Middleton is feeling the love on her birthday as she celebrates with her family. The Princess of Wales, who turns 43 on Jan. 9, is spending the day at home with Prince William and their children Prince George,

Prince William has issued an emotional birthday message to the Princess of Wales and shared a new photo of his wife.Princess Kate is celebrating her 43rd birthday today and her first since completing preventative chemotherapy treatment.