May 2 (UPI) -- Britain's royal family shared on social media a new photo of Princess Charlotte in honor of her sixth birthday Sunday.
"Wishing Princess Charlotte a very happy sixth birthday today," the post said.
The photo shows the smiling child with her long, blonde hair loose around her shoulders. She is wearing a floral print dress.
Charlotte is one of three children. Her siblings are Prince George, 7, and Prince Louis, 3.