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.
Sophia Albertina, Abbess of Quedlinburg Princess Sophia Albertina of Sweden ("Sophia Maria Lovisa Fredrika Albertina"; 8 October 1753 – 17 March 1829) was the last Princess-Abbess of Quedlinburg Abbey and as such reigned as vassal monarch of the Holy Roman Empire.