Choras (Residents of)
Yes, They Are
The mayor of Choras remarks that "the knight Cyrus fell while protecting our Kingdom from Magus," and an old woman labels Cyrus the "town's guardian angel." The battle with the Frog King and the flashback to Glenn's childhood (You're a marshmallow, Glenn) take place on the Guardia Forest map, although they may not necessarily take place there. I think it is clear that Cyrus and Glenn have been friends since childhood. Cyrus's ruminations on Zenan bridge only show that he visited Guardia before deciding to become a Knight. Cyrus and Glenn could have left Choras in search of adventure before then. Also, Magus and his mystic legions threatened all humanity. In fighting Magus, Cyrus was defending the people of Choras, whatever their political affiliation may be. Lastly, Cyrus is buried in the Northern Ruins rather than on the continent of Zenan.
Note that this could be fact, but no direct statement on the matter exists in the game, precluding this entry from appearing under Common Questions or simply on their biography pages.
From: Theory (Locations)