Called the Prince of Madness, Adimarchus is the Abyssal+lord of insanity. His Realm, Occipitus, is located on the 507th Layer of the+Abyss.
His recent overthrow was orchestrated by Athux, a son of Graz'zt.
Sources: Fiendish Codex I: Hordes of the Abyss, Shackled City Adventure Path
Actually, my fiend ancestor was an incubus. The schnoz, the warts, the bald patch are 100% genuine human.
— Street conversation
