Nyx, feared by Zeus himself, was the goddess of night. She had many children, including Lyssa, the spirit of madness and rage, and the Maniae, who appropriately represented mania and insanity. And of course, there were the Furies, a.k.a. the Erinyes, possibly children of Nyx, who took vengeance on men. In the Aeneid, they were called Alecto (“endless anger”), Megaera (“jealous rage”), and Tisiphone (“vengeful destruction’). And let’s not forget the Gorgon, Medusa.
