Venerable Gregory the Byzantine, Athonite hesychast and spiritual teacher of Saint Gregory Palamas.
Gregory came from Constantinople to Mount Athos in the fourteenth century and lived in stillness in the desert places of the Holy Mountain. He is remembered chiefly as the elder who guided the young Gregory Palamas in the life of prayer.
He reposed in peace on Athos.
Feast day
On the New Calendar, Gregory the Byzantine is commemorated on April 6. Churches on the Old (Julian) Calendar keep the feast on April 19 of the civil calendar.
Also commemorated on April 6

Gregory of Sinai
Venerable, Γρηγόριος ο Σιναΐτης
Venerable Gregory of Sinai, hesychast father and teacher of the prayer of the heart.
Platonis of Nisibis
Holy Woman, Πλατωνίς
Venerable Platonis, deaconess and foundress of a women's monastery near Nisibis.
120 Martyrs of Persia
Saint, Εκατόν Είκοσι Μάρτυρες εν Περσίδι
The Holy 120 Martyrs who were burned for Christ in Persia.
Gennadios of Dionysiou
Martyr, Γεννάδιος ο Διονυσιάτης
Holy New Martyr Gennadios of the Monastery of Dionysiou on Mount Athos.
Five New Martyrs of Samothrace
Saint, Πέντε Νεομάρτυρες Σαμοθράκης
Holy New Martyrs George, Manuel, Theodore, George and Michael of Samothrace.