St. Cyprian, Metropolitan of Kiev and Moscow, Athonite and hesychast.
St. Cyprian was born at Tarnovo in Bulgaria in the fourteenth century and lived as a monk on Mount Athos and at Constantinople, a disciple of the hesychast Patriarch Philotheos. Sent as metropolitan to Kiev and later received in Moscow, he labored to unite the Russian Church and enriched it with liturgical translations and hesychast teaching.
He reposed in 1406 and is commemorated on September 16.
Feast day
On the New Calendar, Cyprian of Kiev and Moscow is commemorated on September 16. Churches on the Old (Julian) Calendar keep the feast on September 29 of the civil calendar.
Also commemorated on September 16

Euphemia the All-Praised (2nd)
Martyr, Ευφημία
Holy Great Martyr Euphemia the All-Praised of Chalcedon.
Ludmila of Bohemia
Holy Woman, Λουντμίλα
Holy Martyr Ludmila, princess of Bohemia and grandmother of St. Wenceslaus.
Dorotheos the Hermit of Egypt
Venerable, Δωρόθεος ο Ερημίτης
Venerable Dorotheos, hermit of the Egyptian desert.
Ninian of Whithorn
Hierarch, Νινιανός
St. Ninian, bishop and apostle of the southern Picts.
Name days: Ninian