an Athenian princess, who was raped and had her tongue cut out by her brother-in-law Tereus, and subsequently was transformed into a nightingale
Procne
Philomela in American English
(ˌfɪləˈmilə)
noun
1. Greek Mythology
a princess of Athens raped by Tereus, husband of her sister Procne: the gods change Philomela into a nightingale, Procne into a swallow, and Tereus into a hawk