The Demon Lords

The Demon Lords of Elysia were a terror and destructive wave upon the continent prior to the formation of the Coalition State, Fall of Tosima and Mind Flayer Invasion. What is known of the Demon Lords is found within The Luminous Libram of Caude, The Enchiridion of the Silver Void and relics and scrolls found by the adventurer's guild of Eskarya.
Long ago, in a raging war upon the continent of Elysia, the noble family of Caude led the defence of Elysia against Demon Lords of the Abyss. Whilst the victory of mortals was pyrrhic, it was with the aid of the gods, notably Kaarin and Zitus who provided the power to lock away the four Demon Lords of Elysia.
The armies of the Abyss were another matter, whom were imprisoned in the Silver Void, a demi-plane created by a powerful spellcaster and High Elder of the Elysian Institute of Arcana, Varal. Within the Silver Void, the demons were imprisoned and no longer a threat to Elysia.
In recent years, forces have gathered and scoured the lands in search of the prisons of the Demon Lords, which have been noted to have been hidden beneath temples across Elysia. Thus far, it is known that a single Demon Lord has been released, a Demonic Minotaur entity by the name of Valmoth. The entity was released by the adventurer's guild of Eskarya, upon finding themselves trapped within a secluded demi-plane with no escape, but with the promise of their release they released the entity who kept his word and plane shifted them back to Fort Eskarya.
Below list the known Demon Lords, their discovered prisons (if discovered), their status and their servants.
Demon Lord 	Prison Location 	Status 	Servant
Valmoth ⸸ 	Chapel of Kaarin 	Dead 	Melusvi
Kur'ixan 	Zorhenna 	Unknown 	Rairaku ⸸
Zal'moxon ⸸	Khokkolun 	Dead 	Viakane
Yolgoruth ⸸	Black Lotus Monastery	Dead 	Fenrir
Tenebrous 	Plane of Minds 	Released	Barandir (Formerly)