Soneillon the Youthful Crone is a demon lord

Demon lord (Dungeons & Dragons)

In the Dungeons & Dragons fantasy role-playing game, demon lords are demons who have gained great power and established a position of preeminence among demonkind. Each demon lord has a unique appearance and set of abilities. Most control at least one layer of the Abyss...

, in the Dungeons & Dragons

Dungeons & Dragons

Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

roleplaying game.

Publication history

Soneillon was one of many demon lords that was mentioned only by name in a list in the original Monster Manual II (1983).

Soneillon received further details in third edition in Fiendish Codex I: Hordes of the Abyss

Fiendish Codex I: Hordes of the Abyss

Fiendish Codex I: Hordes of the Abyss is an optional supplemental source book for the 3.5 edition of the Dungeons & Dragons roleplaying game.-Chapter 1: Demonic Lore:...

(2006). Some additional information on Soneillon is provided in the book's web suppplement.

Realm

Soneillon dwells on the layer Spirac, in the unwholesome depths of a mountain pool near the center of the layer; this pool rejuvenates years from a body each time a mortal bathes in the pool, but those who reach the pool must sacrifice a portion of their free will to Soneillon.