Constantine of Kosino

Venerable Constantine of Kosino was abbot of the Kosino monastery, near Staraya Russa, in the Novgorod land. He fell asleep on 29 July 1240. He is venerated among the venerable by the Russian Church. His commemoration is on 29 July and on the third Sunday after Pentecost, in the Synaxis of the Saints of Novgorod.

At the very end of the twelfth century he moved from the Novgorod monastery of Varlaam of Khutyn to a secluded place at the confluence of the rivers Polista and Snezhna, three versts from the town of Staraya Russa, and founded the Saint Nicholas monastery of Kosino, of which he was the first abbot. With him all this time was his closest friend and companion, Cosmas of Kosino, who was also later numbered among the saints.

At his death Constantine wanted to hand the abbacy to Cosmas, but the latter refused the rank and continued his labours as a simple monk. The relics of Father Constantine rest under the ground in the Kosino monastery. The sources say he died after 1240 and, in another place, on 29 July 1240.