Hildegard of Bingen (Sibyl of the Rhine)

Given as a tithe to the church at age eight, Hildegard lived at Disibodenberg before experiencing divine commands at age forty-two to "write what you see and hear." Founding her own independent convents at Rupertsberg and Eibingen, she corresponded with popes, emperors, and Saint Bernard of Clairvaux.

Her theological vision perceived creation as a dynamic living organism suffused with Viriditas—the divine life-force. She penned medicinal treatises, invented an early constructed language (Lingua Ignota), and composed the earliest surviving liturgical morality play.