vengeful spirits who wandered the underworld ruled by hades... i think.
actually she is hades and Persephone's daughter.
In traditional Greek Mythology neither Hades nor Persephone have any children.
Hades and Persephone have no children. Erynes translates into the 'the angry ones', but their other name 'Eumenídes' means 'the gracious ones'. They are female chothonic deities of vengeance. The supernatural personification of the anger of the dead. They represent regeneration, the potency of creations, that which both consumes and empowers.