In the summer of 1098, a child was born to noble parents in Bermersheim, near Alzey, in modern-day Rheinhessen, and was christened Hildegard. By her own account, she was having visions at the age of five; her parents placed her in the care of a small nunnery when she was eight. Over an 81-year life-span, this remarkable woman would go on to lead the Abbey at Disibodenberg and found two further convents of her own; she wrote three major theological works and a number of shorter treatises on natural history, herbalism, and healing, as well as the first surviving morality play an...