Pale Night

Pale Night, also known as the Mother of Demons, is a Demon Lord of the Abyss, both enigmatic and unbelievably ancient, she is an obyrith, the oldest form of primordial demons.
Pale Night's form is incorporeal, and she appears as an empty flowing white shroud with the suggestion of a shapely female body underneath. It is said that Pale Night's true form, as befits an obyrith, is so hideous and terrifying that reality itself rejects it. The shroud that she "wears" hides it. To glimpse Pale Night's true form risks madness and death.
Ancient texts claim that Pale Night is the mother of Graz'zt, Lupercio, and Vucarik in Chains. Other texts make the bold claim that the entire tanar'ri race of demons is descended from her in some way. However, Pale Night speaks only very rarely and has not confirmed any of this.
Worshippers of Pale Night are rare; most of them are malevolent spellcasters obsessed with creating new breeds of half-fiends to unleash to the world.

Realm

Pale Night lives in a bone castle which sits on a vast plateau in the Endless Maze of Baphomet, on the 600th layer of the Abyss. She has a strong alliance with Baphomet, the Prince of Beasts, and has lived on his layer since long before he became a demon lord. They do not work together, but each will defend the other's home from assault. Pale Night's castle looks like a giant grasping hand and is guarded by ambulatory bones and appendages. She rarely leaves this castle. It is said that those who stumble into her domain become new guardians for it.
Pale Night also rules the 471st layer of the Abyss, called Androlynne. Long ago, by guile and trickery, she trapped a whole generation of eladrin children on her layer with the intent of hunting them down one by one at her leisure. Since then, the layer has become a battlefield between the forces of the demoness and the celestials that have come to protect the children.

Divine Classification

Demon Lord

Realm

The Infinite Layers of The Abyss