No other woman in the Middle Ages has been so influential and versatile as Hildegard von Bingen, who was an abbess at the monastery of Bingen in Germany. In a patriarchal men-driven society, it is quite exceptional that popes, emperors, kings, bishops and abbots asked Hildegard for advice, for which she didn't mince her words. Hildegard was a theologian, medical doctor, prophetess, poet and composer. Her books Physica and Cause Et Cure are about natural medicine, her book Ordo Virtutum is a mystery play. In Scivias, she dscribers het visions and Symphonia Armonie Celestium Revelationum is a collection of Hildegard's music and poetry.