In what year was the abbess who wrote the biography of Bertha of Bingen born?
Hildegard of Bingen Hildegard of Bingen, O.S.B. (German: "Hildegard von Bingen" ; ; 1098 – 17 September 1179), also known as Saint Hildegard and Sibyl of the Rhine, was a German Benedictine abbess, writer, composer, philosopher, Christian mystic, visionary, and polymath. She is considered to be the founder of scientific natural history in Germany.
Chelles Abbey Chelles Abbey (French: "Abbaye Notre-Dame-des-Chelles" ) was a Frankish monastery founded c. 658 during the early medieval period. It was intended initially as a monastery for women; then its reputation for great learning grew, and with the afflux of men wishing to follow the monastic life, a parallel male community was established, creating a double monastery.