Andraste

If you're looking for the kind of school that might get all sorts, you could try having it be one of the really ancient charity schools, like Christ's Hospital, which, funny uniform notwithstanding, is a sort-of-private-800-year-old-charity-school that basically collects bright kids/kids who will do better academically or whatever away from home. And also, since it has live-in staff and students, can legitimately have random dogs and slightly more staff than a normal school. Also would have a lot of specialist staff for the random collection of amenities that gather when you've had one site for 600 years. (Cousin used to work in their theatre. I am still jealous)