Two-year-old Prince George started nursery school on Wednesday.
He was escorted to Westacre Montessori School Nursery in Norfolk, eastern England by the Duke and Duchess of Cambridge.
Prince George's proud mother Kate took his photograph as she and Prince William dropped him off.
The nursery is near the family's country home at Anmer Hall, on Queen Elizabeth's private Sandringham estate.
The two pictures, released by royal officials, show the two-year-old prince in a navy blue coat.
He was bundled up in a quilted coat with brown corduroy patches on the elbows, a hood, and tartan lining.
He also carried a light blue backpack, which looked a lot like a Fjallraven, the Swedish company known for its minimalist sacks.
George, who is third in line to the throne after his grandfather Prince Charles and father William, will attend the nursery while his parents are staying at Anmer Hall but not when they are at their London home, Kensington Palace.
The nursery, located in a former chapel, reportedly costs about $8 an hour to attend.
While the older generation of British royals did not typically attend nursery, George is following in the footsteps of his father.
Prince William with his mother, Princess Diana, on his first day of school in 1985. (Getty Images)
William was sent to an exclusive nursery school near Kensington Palace by his mother, the late Princess Diana, who had herself worked at a nursery before her marriage to Prince Charles.
The nursery is located in a private road which the royals hope will deter prying eyes.
Montessori schools are known for their liberal approach to education, which can include mixed-age classrooms and encouraging children to act independently.