Question: In what year was the abbess who wrote the biography of Bertha of Bingen born?
Sentence (from "The Story of a Great Schoolmaster"): But in December 1922, after disagreements emerged with Sanderson's widow about his approach to the subject, Wells withdrew from the official biography (published in 1923 as "Sanderson of Oundle"; Wells wrote much of the text but the volume was published without listing an author) and published his own work separately.
Relevant evidence: No