The Four Champions of Rubrum is a group of four strongest Agito Cadets from the Dominion of Rubrum in Final Fantasy Type-0. The four members of the group are the main characters of the manga Final Fantasy Type-0 Side Story: The Ice Reaper, and is mentioned a few times in the main game.
The group's name in Japanese is alluded to the Four Heavenly Kings (Shitennō/四天王) in Buddhism.
Four Heavenly Kings refer to the four gods from Buddhist faith. Shitennō is also used to refer to a group of four leaders in a given field, i.e "The Big Four" or "Quadrumvirate".The