Venerable Eirenarchos the Recluse of Rostov.
St. Eirenarchos was a monk of the Boris and Gleb Monastery near Rostov in the sixteenth and seventeenth centuries, who lived as a recluse in chains and strict asceticism. Tradition relates that he blessed Prince Pozharsky before the deliverance of Moscow in the Time of Troubles.
He reposed in 1616 and is commemorated on January 13.
Feast day
On the New Calendar, Eirenarchos of Rostov is commemorated on January 13. Churches on the Old (Julian) Calendar keep the feast on January 26 of the civil calendar.
Also commemorated on January 13

Stratonikos the Martyr
Martyr, Στρατόνικος
Holy Martyr Stratonikos, who suffered with St. Hermylos at Singidunum.
Name days: Stratonikos, Stratonicus
Maximos Kavsokalyvites
Venerable, Μάξιμος ο Καυσοκαλύβης
Venerable Maximos the Hut-Burner of Mount Athos.
James of Nisibis
Hierarch, Ιάκωβος Νισίβεως
St. James, Bishop of Nisibis, father of the Council of Nicaea.
Jeremiah I of Constantinople
Hierarch, Ιερεμίας Α΄
St. Jeremiah I, Patriarch of Constantinople in the sixteenth century.
Hilary of Poitiers
Hierarch, Ιλάριος
St. Hilary, Bishop of Poitiers, defender of the Nicene faith in the West.