How many schools compete in the Triwizard Tournament?

The story behind the answer

Three schools compete in the Triwizard Tournament: Hogwarts School of Witchcraft and Wizardry, Beauxbatons Academy of Magic, and Durmstrang Institute. Champions are chosen by the Goblet of Fire—though in the 1994 tournament, an unusual twist produced four champions, the competition still involved only three schools.

The Triwizard Tournament dates back to medieval times and was intended to foster cooperation among Europe’s leading magical schools, but it was often suspended due to the high danger. To remember the number, think “Triwizard” = “tri” = three, and the trio of schools: Hogwarts, Beauxbatons, Durmstrang.