Pathfinder, Name That God!

[metabolicjosh]

Okay I need help finding a divine being.

Here's all I know.

It's worshiped by elven cultists.
It was worshiped by all elves at one point in the past.
It's called 'the father'
It's been referenced as an old god.
It's related to demons, to a great degree.
It's possibly related to blood, and body hoping demons.

Can I have a list of beings that this could be? Yes, it is a creature that exists in pathfinder lore, extended probably.

[Secret Wizard]

http://www.pathfinderwiki.com/wiki/Treerazer is all that comes to mind when mixing demons and elves...

Perhaps Cernunnos (http://www.pathfinderwiki.com/wiki/Cernunnos)

[skypse]

It's been referenced as an old god.


What year is your campaign at? This will give you an idea on what "old" means. Maybe it is one of the great old ones (Cthulhu and friends) or maybe is someone from 3.5/3e