Electra was the wife of Corythus. She was seduced by Zeus and gave birth to Dardanus, who became the founder of Troy, ancestor of Priam and his house. According to one legend she was the lost Pleiade, disappearing in grief after the destruction of Troy.
She was called Atlantis by Ovid, personifying the family of Pleiades.
According to the story, Electra (daughter of Agamemnon and Clytemnestra) was absent from Mycenae when her father, King Agamemnon, returned from the Trojan War and was murdered by Aegisthus, Clytemnestra's lover, and/or by Clytemnestra herself.
Later, Electra married Pylades, Orestes' close friend and son of King Strophius (the same one who had cared for Orestes while he hid from his mother and her lover).