Zealot Academy

A magical academy full of paladins, crusaders. healers, and various clerics from a pantheon of gods, demigods, saints, Great Crusaders, Holy (or unholy, depending on the morality) Knights, Generals, etc.

Byleth is part of a zealot academy called Garrach Mach Monastary, which housed various saints, demigods, and nobles who either teach or learn various militaristic and religious practices.