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.

Queen Camilla showcased a rarely-seen diamond brooch from the late Queen Elizabeth II's collection during a church visit in Sandringham on Sunday alongside King Charles. The striking piece, known as the 'Raspberry pip' brooch,

A little rain couldn't keep King Charles and Queen Camilla away from Sunday church at Sandringham, their first appearance of the year as his cancer treatment continues.

The King and Queen are set to celebrate New Years in Birkhall once more, with the location serving as a constant in their Hogmanay plans since 2004 when Charles proposed to Camilla

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

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

Happy birthday Princess Kate! And happy new-royal-portrait-day to the rest of us. In honor of Kate Middleton's 43rd birthday on Prince William shared a new, black-and-white portrait of the Princess of Wales on the couple's official Instagram,