The eldest son of the Duke and Duchess of Cambridge is growing up fast.
On Wednesday, Prince George started Westacre Montessori School nursery in Norfolk.
The royal family released two adorable photos to mark the occasion.
In a statement, Kensington Palace asked the public and media to leave the school alone, because it "does not have a press spokesperson."
"The Duke and Duchess of Cambridge continue to be grateful for the public's support for the privacy of their young family. They appreciate the ongoing care that the British press is showing around the privacy of their children and have been pleased with the constructive dialogue Kensington Palace has had with a number of international media outlets in recent months," the statement read.