What is the name of school Harry Potter had to pretend go for his Aunt Marge in third book?

In the third book, "Harry Potter and the Prisoner of Azkaban", Harry had to pretend to go to a school called St. Brutus' Secure Centre for Incurably Criminal Boys. This was a lie concocted by Ron and Hermione to explain Harry's sudden disappearance after he escaped from his aunt's house.