LAT

DGRBM

Proper name: PHAEDRA (Φαίδρα), a daughter of Minos by Pasiphaë or Crete, and the wife of Theseus. (Apollod. iii. 1. § 2,) She was the stepmother of Hippolytus, the son of Theseus, by Antiope or Hippolyte, and having fallen in love with him he repulsed her, whereupon she calumniated him before Theseus. After the death of Hippolytus, his innocence became known to his father, and Phaedra made away with herself. (Hom. Od. xi. 325; Eurip. Hippol.; compare Theseus and Hippolytus.) (Wikisource | public domain)
Dictionary of Greek and Roman Biography and Mythology (ed. William Smith 1870), Wikisource | public domain

Lewis Short

Phaedra (noun F) : Φαίδρα
* The daughter of king Minos, of Crete, sister of Ariadne and wife of Theseus; she slew herself for hopeless love of Hippolytus, Verg. A. 6, 445; Ov. A. A. 1, 511; id. H. 4, 74; Sen. Hippol. 434; cf. Serv. Verg. A. 6, 14; Hyg. Fab. 47; 243.
Charlton T. Lewis, Charles Short, A Latin Dictionary

PIR

Feminine Personal name
Confirmed occurences in the Roman Empire:
Prosopographia Imperii Romani
memory