Royal fans have said Prince Louis is growing up fast as he donned blue shorts, a shirt with a tie and an elegant jacket to join other members of the Royal Family for the Easter Sunday service this morning.
The four-year-old, who is celebrating his fifth birthday on April 23, arrived at St George's Chapel in Windsor clutching his mum Kate's hand and walked next to his sister Princess Charlotte as they headed to church.
After photos of royals emerged, fans were quick to share their reaction on social media, with many describing Prince Louis, Princess Charlotte and Prince George as "beautiful".