<P> The hatred between Orcus and Demogorgon is legendary . He is also a dedicated foe of both Graz'zt and Fraz - Urb'luu . Some of his allies include the Succubus Queen Malcanthet; the currently imprisoned Shami - Amourae was his former consort . In Gary Gygax's Gord the Rogue series, he is the brother of another demon lord called "Mandrillagon ." He is served by the minor demon lord Abraxas that controls the 17th layer (Death's Reward) and was allied with the demon lord Ilsidahur who controls the 90th layer, near Demogorgon's realm . </P> <P> One of Demogorgon's spawn with Malcanthet is the monstrous Arendagrost . According to WG7 he has a son with a mortal woman, the cambion Drumorg . </P> <P> Demogorgon and the ancient and powerful obyrith Dagon have a sort of alliance . Demogorgon often travels to the domain of the elder demon lord to speak to him and try to gain knowledge and secrets from him or seek his vast wisdom for counsel . Dagon, in turn, always whispers his secrets to one head at a time (never both at once), thus playing a major role in the tension between Demogorgon's heads . </P> <P> Demogorgon lives on the 88th layer of the Abyss, known as Abysm, the Brine Flats, or Gaping Maw . This is a layer consisting of a great sea of briny water broken by tall, sharp, ugly, rocky prominences rising out of the endless murky water into a sky of yellow mist . Demogorgon's palace is two twin towers shaped very roughly like tightly coiled serpents that are covered with sharp, ugly fin - like features and spines, and crowned at the top with skull - shaped minarets . The two towers are linked by a bridge near the top . Beneath the fortress are reefs and caverns where aboleths, kraken and ixitxachitl dwell, constantly warring with each other and worshipping Demogorgon in his palace above . His towers are said to extend so far beneath the sea that they connect to the layer beneath him where he speaks with the obyrith lord Dagon . </P>

Who did demogorgon release to watch over the material plane