Maria Pierina De Micheli was a Roman Catholic nun born in Milan in 1890. Originally named Giuseppina, she entered the Daughters of the Immaculate Conception in 1913 and adopted her religious name the following year. After serving in Buenos Aires for several years, she returned to Italy, where she reported experiencing visions of Christ in 1936. She is primarily recognized for her spiritual work regarding the Holy Face of Jesus and for designing a specific devotional medal based on the Shroud of Turin.