“Happy 10th Birthday Princess Charlotte!” they captioned an Instagram photo of the preteen smiling outdoors in a camouflage jacket. 9 Princess Charlotte is 10.

The couple wrote on Instagram, "Happy 10th Birthday Princess Charlotte! 📸 The Princess of Wales," posting a photo taken by Princess Kate on her iPhone—a royal first.

“Happy 10th Birthday, Princess Charlotte! ,” a post on her parents’ official Instagram read on Friday, May 2, in which the 10-year-old beamed while wearing a long-sleeve camouflage jacket ...

Happy birthday Princess Charlotte! ... Charlotte is sporting a £37 Jack Pyke children's 'Evolution Camo' jacket, and a rucksack snuggly strapped to her back, with jeans.