Grandmothers hypothesis(spoilers)

[G13]

Who said Fang was Vanille´s mother?

I was mostly referring to fal'Cie as well. The fal'Cie had to have been the ones who started the fear of Pulse, and if they didn't they sure as didn't do anything to put those fears to rest. Why would they let the hatred of Pulse go on only to admit a Pulse citizen should they come a knocking?

I think the Purge is very recent.

I think you misunderstood me. The fear had to be there before the Purge, else the Purge wouldn't have happened. It wasn't like the Sanctum noticed the fal'Cie was there and shouted "OMG there's a Pulse fal'Cie! Hit the fear button!" The people have been told generation after generation that Pulse is the enemy. Don't trust anything from Pulse, everything there can kill you! They even refer to Pulse as Hell. So, again, why would they admit someone from Pulse into Cocoon when they promoted so much hatred towards it?

Guardian XIII,I already explained why it´s never mentioned.
And Square do this kinds of subtleties.

You didn't explain anything, you offered your reasons as to why you think that. Never did I see you post any in game references helping your theory.

Fang not only is the ancestor of Claire but also of Galenth.This guy still weared the blue clothes of the Yun clan which was most probably the dominating clan of Oerba.He weared it before Barth killed him.
Convinced now?

I wore a blue shirt and some blue jeans yesterday, does that mean I'm part of the Yun clan? Are you really saying that anyone who wears blue is a descendant of Fang and her clan?

Edit: Forget this bit, it seems you've ditched these ideas for a new one. Are you just looking for any kind of hidden connection?