In ancient Greek, Roman, and Slavic mythology, Dis (“Wealthy”) was born one of the three sons of Saturn and Ops; his brothers are Jupiter and Neptune, and his wife is Proserpina. Dis is also the name of one of the cities in Hell.
Dis has three faces: one black, one red, and one white. The demon of death and the ruler of the Underworld, only oaths and curses sworn while striking the ground can reach him. Black sheep were sacrificed to him and the Roman Senate de clared that every one hundred years a special three-day-long festival would be held to honor Dis and his wife. He commands the demons Arioch, Baalzephon, Biffant, Bitru, Furcas, Merodach, and Titivulus.