Monastic Life and Foundations
Having come to Saint Cyril of White Lake as a boy of thirteen, Martinian was formed in the monastic discipline of his elder, learning reading and writing and devoting himself, with Cyril's blessing, to the copying of books. He was in time ordained deacon and afterward hieromonk.
After the death of Saint Cyril in 1427, Martinian withdrew to a deserted island in Lake Vozha, where he gathered a community, constructed a church dedicated to the Transfiguration, and established a rule for the brethren. He subsequently became igumen of the Therapon (Ferapontov) monastery, where he improved the condition of the house. He returned to Therapon in 1455 and died there at the age of eighty-five, having endured severe illness in his last years.