Wife of Agamemnon in Greek Mythology, mother of Orestes, Electra, and Iphigenia. She and her lover Aegisthus murdered Agamemnon for his poor treatment of her and his recommendation that they sacrifice Iphigenia. They were in turn slain by Orestes. After exacting his revenge, Orestes was hounded by the Erinyes, the avengers of crime and wickedness.