Prince George marked a major milestone on Tuesday, as he began his first day at Eton College.

The heir to the throne, who recently turned 13, was accompanied by his parents, Prince William and Kate Middleton, on the rainy day.

The Princess of Wales wore a long green dress for the occasion, and accessorized with a gold necklace. Both William and Kate carried umbrellas with them.

George arrived in a suit and tie, and the palace later shared photos of the young prince in full Eton uniform.

The traditional uniform consists of pinstriped pants, the school’s iconic black tailcoat, a shirt with a white collar and a coordinating ribbon tie.

Both Prince William and Prince Harry attended Eton College, with William attending from 1995 to 2000, while the Duke of Sussex went from 1998 to 2003.

Below are photos of the princes during their time at the school:

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