Don't both games also reference Hyne the magician in some way? In III, Hyne is a character you fight; in VIII Hyne is a magical figure in the lore. I think you can only read about Hyne in VIII from one of the rare magazines (or maybe even from the Garden homepage or whatever it's called).
Indeed, forgot about that one. Their official English spellings are different, though. Incidentally FF8's information on Hyne is being told to children as a story in at least two locations in the game, but you've gotta be willing to explore NPC dialogue for it.