Quote Originally Posted by RaphaelDDL View Post
Belias is part of Ivalice Alliance (as Chaos, Zalera, Zeromus, Addramalech and so on) which is mainly FF Tactics and FF XII.

I don't see other Lore specific things that would pop on XIV, since it isn't part of Ivalice. So I don't even see how they would actually reefer to an Esper from said history line if XIV is not related.

Maybe they needed a random name and used it.
They just want to put a lot of other FF lore into XIV, there is a city named Dalmasca ( under controll of Garlemald, seems like a running gag ), the crystal tower and plenty of other thing, I don't think they want to limit belias and the other eons from Ivalice to simply another name for the same summon. Especially considering that the ascians are 13 and have name linked to the espers of Ivalice, be ready to see them coming someday.