Holy Martyr Audaktos and his daughter Saint Kallisthene of Ephesus.
Audaktos was a nobleman of Ephesus whose daughter Kallisthene was sought in marriage by the emperor Maximian Galerius. Because she refused for Christ's sake, her father was stripped of his rank and possessions, exiled, and finally beheaded.
Kallisthene fled in disguise and lived in hiding until the persecution ended; she then recovered her father's relics and spent the rest of her life in works of charity and prayer.
Feast day
On the New Calendar, Audaktos and Kallisthene is commemorated on October 4. Churches on the Old (Julian) Calendar keep the feast on October 17 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Also commemorated on October 4

Hierotheus of Athens
Hierarch, Ιερόθεος
Bishop Hierotheos, first Bishop of Athens.
Name days: Hierotheos, Ierotheos
John Lampadistis
Venerable, Ιωάννης ο Λαμπαδιστής
Venerable John Lampadistis of Cyprus, the young ascetic and wonderworker of Marathasa.
Peter of Capitolias
Hierarch, Πέτρος ο Ιερομάρτυς
Holy Hieromartyr Peter of Capitolias, priest and monk beheaded by the Saracens.
Ammoun of Egypt
Venerable, Αμμούν ο Αιγύπτιος
Venerable Ammoun of Egypt, founder of the monastic settlement of Nitria.