Life and Monastic Foundation
According to the synaxarion, Euthymius was born in Vologda and received the monastic tonsure at the Savior-Stone monastery situated at Lake Kuben.
He first lived as a solitary in a cell along the River Kuben, and afterward moved to Syanzhem, in a remote and forested region of northern Russia, where he founded the Ascension monastery and became its abbot.
Sources record that the establishment of the monastery on the River Syanzhema received ecclesiastical approval from Archbishop Dionysius of Rostov, whose tenure is given as 1418–1425. The community grew into a center of monastic life and witness.
Euthymius and his disciple Chariton were noted for their ascetic dedication, accepting food and clothing that even the other brethren regarded as worthless.