In what year was the abbess who wrote the biography of Bertha of Bingen born?
Bertha of Bingen Saint Bertha of Bingen (German: "Heilige Berta", died ca. 757) was the mother of Rupert of Bingen. Her biography was written, and subsequently her cult popularized, by Hildegard of Bingen, who lived in the same region, about three hundred years later. Bertha and Rupert share a feast day on May 15.
Rupertsberg Rupertsberg is a crag at the confluence of the Nahe and the Rhine, in Bingen am Rhein. It is named for Saint Rupert of Bingen, son of Bertha of Bingen. It is notable as the site of the first convent founded by Saint Hildegard of Bingen, in 1150, after leaving the monastery at Disibodenberg. She acquired the land from Hermann, dean of Mainz, and Count Bernhard of Hildesheim, plus various smaller gifts. The convent chapel was consecrated by Archbishop Henry of Mainz in 1152. The charters were drawn up in 1158 by Archbishop Arnold of Mainz. In 1171, Archbishop Christian of Mainz extended tax concessions to the convent. The ruins of the monastery were destroyed to make way for a railway track in 1857.