Princess Lilibet is 4!

The second child and first daughter of Prince Harry and Duchess Meghan turned another year older on Wednesday, June 4, and royal mom Meghan celebrated by posting never-before-seen photos of the young one.

"The sweetest bond to watch unfold 💕 Daddy's little girl and favorite adventurer," Meghan captioned rare photos of Harry and Lilibet, including one of the royal looking into his newborn's eyes, and another of the pair walking barefoot on a dirt road. "Happy birthday Lili!"

In an earlier set of intimate black-and-white photos with Meghan and Lilibet, the As Ever founder wrote: "Happy birthday to our beautiful girl! Four years ago today she came into our lives — and each day is brighter and better because of it. Thanks to all of those sending love and celebrating her special day!"

Sharing a name with a childhood nickname for Harry's grandmother, Queen Elizabeth II, Lilibet is seen as both a toddler held tightly by Meghan in a shot by the ocean, and as a newborn, swaddled and lying against her mother's chest.