Today marks a very special occasion for Prince Harry and Meghan Markle's son, Archie Harrison Mountbatten-Windsor. The toddler is celebrating his third birthday today, and Queen Elizabeth shared a special tribute to Archie on her Instagram Story, including a throwback pic and a cake emoji. The message reads, "Wishing Archie Mountbatten-Windsor a very happy 3rd birthday!"
The snap, which was taken by Chris Allerton, features the queen and Prince Philip gushing over baby Archie as Markle cradles him in her arms. Right next to Markle is her mom, smiling proudly at her grandson while Prince Harry stands next to Prince Philip, practically beaming at his newborn.