Saint Eustathios the Confessor, Bishop of Kios in Bithynia.
St. Eustathios was Bishop of Kios in Bithynia in the ninth century. For his defense of the holy icons he was persecuted by the iconoclasts, deprived of his see and subjected to hunger and exile.
He reposed after many years of suffering, and the Church honors him as a confessor on March 29.
Feast day
On the New Calendar, Eustathios of Kios is commemorated on March 29. Churches on the Old (Julian) Calendar keep the feast on April 11 of the civil calendar.
Also commemorated on March 29

Savvas of Kalymnos
Venerable, Σάββας ο εν Καλύμνω
Venerable Savvas the New of Kalymnos, iconographer and confessor.
Cyril the Deacon
Martyr, Κύριλλος ο Διάκονος
Holy Martyr Cyril the Deacon of Heliopolis, and the martyrs of Ascalon and Gaza.
Jonah and Barachesios
Martyr, Ιωνάς και Βαραχήσιος
Holy Martyrs Jonah and Barachesios and their companions in Persia.
Diadochos of Photike
Hierarch, Διάδοχος Φωτικής
Saint Diadochos, Bishop of Photike in Epirus, spiritual writer.