Back to school! Prince George, the 4-year-old son of Prince William and Kate Middleton, attended his first day of school at Thomas’s Battersea in London on Thursday with his father by his side.

The precious young royal sported his school’s navy uniform of a sweater with red accents, a light blue shirt, and shorts. His proud dad held his hand and carried his backpack as the Head of the Lower School, Helen Haslem, greeted the royals, shaking George’s hand, and leading them inside.

The Duchess of Cambridge, who recently announced she is pregnant with her third child, was forced to stay home at Kensington Palace. Middleton is currently suffering from Hyperemesis Gravidarum or acute morning sickness during her third pregnancy, which she also battled while pregnant with Prince George and Princess Charlotte.