The Duchess of Sussex added the never-before-seen clips of Archie, 5, and Lilibet, 3, while publicly mourning the death of her rescue beagle with a sentimental video posted on her newly launched Instagram account Tuesday.

Last month, the Duke and Duchess of Sussex revealed their annual holiday card, and both their kids look so grown up. Even if you need a magnifying glass to notice them (Harry and Meghan are really private with their kids’ faces!), you can tell that they’ve both gotten so tall.

Meghan Markle is seen sharing a sweet mother-daughter moment with Princess Lilibet in a sweet new picture posted in her new Instagram reel. The 43-year-old, also mum to five-year-old Archie, shared her devastation over the death of her beloved dog Guy.