Venerable Sabbatius, wonderworker of Solovki, first hermit of the White Sea island.
St. Sabbatius was a monk of the Kirillov monastery and of Valaam who, seeking greater solitude, went with the monk Herman to the uninhabited island of Solovki in the White Sea in 1429. He lived there in prayer for several years and reposed on the mainland in 1435, and his disciples afterward founded the great Solovki monastery.
He is commemorated on September 27.
Feast day
On the New Calendar, Sabbatius of Solovki is commemorated on September 27. Churches on the Old (Julian) Calendar keep the feast on October 10 of the civil calendar.
Also commemorated on September 27

Kallistratos
Martyr, Καλλίστρατος
Holy Martyr Callistratus and 49 companions.
Name days: Kallistratos, Callistratus
Mark, Aristarchos and Zenon the Apostles
Apostle, Μάρκος, Αρίσταρχος και Ζήνων
Holy Apostles Mark, Aristarchos and Zenon of the Seventy.
Name days: Aristarchos, Aristarchus
Akylina of Zagliveri
Holy Woman, Ακυλίνα
New Martyr Akylina of Zagliveri near Thessaloniki, virgin martyr.
Ignatius of the Monastery of the Savior
Venerable, Ιγνάτιος ο Ηγούμενος
Venerable Ignatius, abbot of the Monastery of Christ the Savior in Cappadocia.
Peter of Krutitsa
Hierarch, Πέτρος Κρουτίτσης
Hieromartyr Peter of Krutitsa, locum tenens of the Patriarchal throne of Moscow, martyred in 1937.