Venerable Zeno, an ascetic whose memory is preserved in the synaxaria.
Saint Zeno is remembered in the Greek synaxaria as a monastic who lived the ascetic life and reposed in peace. The details of his life have not been preserved.
Feast day
On the New Calendar, Zeno the Venerable is commemorated on June 12. Churches on the Old (Julian) Calendar keep the feast on June 25 of the civil calendar.
Also commemorated on June 12

Peter the Athonite
Venerable, Πέτρος ο Αθωνίτης
Venerable Peter the Athonite, first known hermit of the Holy Mountain.
Antonina of Nicaea
Holy Woman, Αντωνίνα
Holy Virgin Martyr Antonina of Nicaea, who suffered under Diocletian.
Name days: Antonina
Arsenius of Konevets
Venerable, Αρσένιος Κονεζίας
Venerable Arsenius, founder of the Konevets monastery on Lake Ladoga.
Synesios, Benedict and Timothy, Monk-Martyrs of Thessaloniki
Martyr, Συνέσιος, Βενέδικτος και Τιμόθεος
Monk-Martyrs Synesios, Benedict and Timothy, monastics put to death in Thessaloniki.