 Her sister, Procne, was the wife of King Tereus of Thrace.While the myth has several variations, the general depiction is that Philomela, after being raped and mutilated by her sister's husband, Tereus, obtains her revenge and is transformed into a nightingale ("Luscinia megarhynchos"), a bird renowned for its song.Because of the violence associated with the myth, the song of the nightingale is often depicted or interpreted as a sorrowful lament.