"Wishing Archie Mountbatten-Windsor a very happy 3rd Birthday!" the Queen wrote Erin Hill is the Senior Editor, Royals at PEOPLE. She has reported on Royals for the brand since 2015. Erin ...

While Prince Harry and Meghan didn't share any new updates for Archie's third birthday, he received well wishes on social media from the royal family. Can't get enough of PEOPLE's Royals coverage?

ringing in son Prince Archie's fourth birthday. As she's done in years past, the Duchess of Sussex, 41, planned a laid-back celebration at home for her young son with close friends and family.

Prince Harry, 40, and Meghan Markle, 43, are raising two children – Prince Archie, five, and Princess Lilibet, three – in Montecito, California, and while they have generally kept insights ...