Prince William and Princess Kate have shared an adorable new portrait of Prince Louis as he celebrates his birthday.

Happy birthday, Princess Charlotte! In honor of the royal’s fourth birthday on May 2, proud parents Kate Middleton and Prince William released three new photos of their daughter on Wednesday.

Kate Middleton and Prince William sent fans who wished Princess Charlotte a happy fourth birthday the sweetest thank-you note. See it here.

To mark Prince Louis' 4th birthday, mum Kate Middleton took to Instagram to share unseen photos from a family day out at the beach.

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

How Princess Kate Is Celebrating Her 35th Birthday Kate will be joined by Prince William and their children, George and Charlotte.

Little Princess Charlotte is getting so big! Her mom and dad, Kate Middleton and Prince William just released a trio of new photo of the young royal in honor of her fourth birthday.

The royal family shared new snaps of Prince Louis in Norfolk as he turns 4. Kate Middleton is the first royal to take official photos of her family.

Prince Louis is turning four on Saturday, and to mark the occasion, his royal parents Kate and Prince William have shared new photos of their youngest child.