Saint Hildegard of Bingen (1098–1179) was a German Benedictine nun, mystic, writer, composer, and abbess. She had visions from infancy and wrote about them in her famous work Scivias. She established monasteries in Rupertsberg and Eibingen, becoming a well-known spiritual teacher and speaker. She also created holy music and wrote about theology and nature. Hildegard died in 1179, and Pope Benedict XVI made her a Doctor of the Church in 2012. Her feast day is September 17.