Happy third birthday — and first day of preschool —Prince Louis!

“The Duke and Duchess of Cambridge are delighted to share a new photograph ahead ofPrince Louis' third birthday tomorrow,” Kensington Palace said in a statement on Thursday.

Prince George and Princess Charlotte on their first days of nursery school.Duchess of Cambridge/PA Wire/Getty; The Duchess of Cambridge/KENSINGTON PALACE/HANDOUT/EPA-EFE/Shutterstock

royal-kids-2

To celebrate his second birthday last year, Kate and William shared photos ofPrince Louistaking part in a special at-home arts and crafts project: rainbow-colored finger paintings in support of National Health Service (NHS) workers and other essential workers tackling the coronavirus pandemic across the country.

Even at his young age,Prince Louishas been preparing for royal life more than ever in the past year.

In March 2020, he starred in an Instagram video alongside big brotherPrince George, 7, and big sisterPrincess Charlotte, 5, participating in the Clap for Carers movement amid the coronavirus pandemic.

Get the premiere issue of PEOPLERoyalsfor glamorous new photos and inside stories royals fans haven’t seen or read elsewhere! Subscribe atpeopleroyals.com/launch

Prince Louismade hisfirst public speaking appearancealongside his older siblings in October, asking his very own animal questions to Sir David Attenborough in a video shared on social media. Louis adorably asked the famed naturalist, “What animal do you like?”

The Cambridge kids also made theirred carpet debutin December during a night out at the theater.

Kate Middleton, Prince William, family

Can’t get enough ofPEOPLE’s Royals coverage?Sign up for our free Royals newsletterto get the latest updates on Kate Middleton, Meghan Markle and more!

Prince Williamhonored his beloved grandfather with a moving tribute, including how thankful he was for Prince Philip to spend years with his wife and children.

“I will always be grateful that my wife had so many years to get to know my grandfather and for the kindness he showed her,” William, 38,wrote. “I will never take for granted the special memories my children will always have of their great-grandpa coming to collect them in his carriage and seeing for themselves his infectious sense of adventure as well as his mischievous sense of humour!”

source: people.com