Saint Great Princess Evdokia was born in 1353, the daughter of the Suzdal prince Dmitry Konstantinovich and Princess Anna. From an early age, she was raised in the spirit of Christian piety and was known for her quiet and gentle nature. In 1367, she became the wife of the Grand Prince of Moscow, Dmitry Donskoy. Their union contributed to peace between the Moscow and Suzdal principalities. The princess actively engaged in acts of Christian mercy and supported her husband in his endeavors to liberate Rus from the Mongol-Tatar yoke.
Evdokia supported Dmitry in his victory at the Kulikovo Field on September 8, 1380, after which she built a church in honor of the Nativity of the Most Holy Theotokos in Moscow. After her husband's death in 1389, she dedicated herself to raising their children and founding the Ascension Women's Monastery in the Moscow Kremlin. Soon after, she began to lead a secret ascetic life, renouncing worldly goods.
In 1407, after a vision of Archangel Michael, the princess decided to embrace monasticism and was tonsured with the name Euphrosinia. In the monastery, she continued her spiritual feats, healing the sick and helping those in need. She died on July 7, 1407, and was buried in the Ascension Monastery she had founded.
The sanctity of the blessed Euphrosinia was confirmed by the miracles occurring at her tomb. Her memory is celebrated on May 17/30 and July 7/20.
