Saint Militsa (Milica) was born in 1335, the daughter of Prince Vratko Nemanjić. In Holy Baptism she was named Euphrosynē. Later, she married the Holy Prince Lazarus (Lazar), who was killed during the great Battle of Kosovo (June 15, 1389), which was fought to defend the Holy Church against the Moslems. After her husband's death, she ruled Serbia until her son Stephen the Tall came of age. She also composed several prayers and religious poems, including "A Mother's Prayer" (Молитва матере) and a very touching poem of mourning for her husband, "The Bridegroom of my Widowhood" (Удовству мојему женик).
Saint Militsa founded Ljubostinja monastery around 1390, and there in 1393, she was tonsured as a nun with the name Eugenia. She was concerned about beginning her monastic life as a widow and about being accepted by the other nuns, whose husbands had also fallen on the battlefield. This inspired her to build and support many monasteries and churches.
At the end of her life, Mother Eugenia was tonsured into the Great Schema with the name Euphrosynē.
After her repose on November 11, 1405, Saint Militsa worked many miracles, and her myrrh-streaming relics healed many sick people.
The Russian Orthodox Church commemorates Saint Militsa on July 19, while the Church of Serbia commemorates her on August 30.