Prince William, Duke of Cambridge, arrives with his son Prince George to the Lindo Wing of St Mary's Hospital on May 2, 2015 in London. Getty Images

The British royal family announced Friday that soon-to-be-4-year-old Prince George will head to Thomas's School in Battersea this fall — not his father's alma mater.

Though Prince William, the Duke of Cambridge, attended Wetherby School in London, he and his wife, Catherine, revealed Friday they were sending the toddler to Thomas's Battersea, which has about 540 boys and girls up to age 13. He will start in September.

"This is clearly a significant moment for their family and most certainly for Thomas's. Like so many parents, the Duke and Duchess have put a great deal of thought into the choice of their eldest child's first 'big school,'" headmaster Ben Thomas wrote in a letter to parents shared in the English press. "They would like, as far as is possible, for him to enjoy the same education that all of our pupils receive and for them to join the school community as all of our new parents do."

Read: Kate Middleton Talks Prince George’s Hobbies During Pancake Day Event

Tuition at Thomas's Battersea costs about £6,385 a term, which equals about $7,980, according to the Sun. The school has a theater, gym, music school, two libraries, three laboratories and a 1-acre playground, among other amenities, according to its website. Thomas said school staff have been preparing for George in recent weeks, upping security and communication.

"Their Royal Highnesses are delighted to have found a school where they are confident George will have a happy and successful start to his education," a spokesman for the palace told the Telegraph.

Read: After Queen Elizabeth Dies, Where Prince George Stands In The Succession Line To The UK Throne

Thomas's Battersea has made headlines in recent years for suggesting its students not make best friends, instead recommending that kids have several good friends without singling out one person. It wasn't an official policy but inspired controversy in 2013 nonetheless.

“Children should be free to choose their friends. It is absurd — schools shouldn’t be interfering at that level," retired headmaster Chris McGovern told the Telegraph at the time.

Prince George currently attends Westacre Montessori.