Princess Charlotte celebrates her 9th birthday today! To mark the milestone, Prince William and Kate Middleton shared a new ...

Alongside the image, which was taken by the Princess of Wales in Windsor over the last few days, read, "Happy 9th Birthday, Princess Charlotte! Thank you for all of the kind messages today.

while a second penned: "Happy birthday, very similar to Estelle," and a third sweetly chimed in: "Congratulations on your birthday Oscar! Hope you have a great birthday!" Crown Princess Victoria ...