Venerable Ammoun of Egypt, founder of the monastic settlement of Nitria.
Ammoun was compelled by his relatives to marry, but persuaded his bride to live with him in chastity as brother and sister. After eighteen years they separated by agreement, and he withdrew to the desert of Nitria, where he became the father of a great monastic settlement.
He was a friend of Saint Anthony the Great, who tradition relates saw his soul carried to heaven by angels at the hour of his death in the mid-fourth century.
Feast day
On the New Calendar, Ammoun of Egypt is commemorated on October 4. Churches on the Old (Julian) Calendar keep the feast on October 17 of the civil calendar.
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.
Audaktos and Kallisthene
Holy Woman, Αύδακτος και Καλλισθένη
Holy Martyr Audaktos and his daughter Saint Kallisthene of Ephesus.
Name days: Kallistheni, Callisthene