Saint Euphrosyne was the daughter of Prince Michael of Chernigov and his wife, who were childless for a long time. Praying to the Most Holy Theotokos, they received a blessing and as a sign of this, a fragrant apparition. Soon they were granted a daughter, whom they named Theodulia. From an early age, she showed piety and did not drink milk if the wet nurse ate meat. After her baptism in the Pechersk Monastery, she was educated by Prince Michael and the wise boyar Theodore. Despite numerous marriage proposals, she refused all until she agreed to the request of the pious Prince Mina, but before that, she prayed to the Theotokos for the preservation of her virginity. The groom died, and she took monastic vows at the monastery in Vlaherna, receiving the name Euphrosyne.
In the monastery, she showed great obedience, mortified the flesh, and cared for her soul, receiving the gift of prophecy. During the invasion of Batu, her prayers preserved the monastery from destruction. Saint Euphrosyne reposed in eternal life on September 25, 1250, on the day of her monastic tonsure, and her relics rest in the Suzdal Rizopolozhensky Monastery.
