Question: What is the date of death of Fritz Anneke's wife?
Sentence (from "Fritz Anneke"): He was the husband of Mathilde Franziska Anneke, the older brother of Emil Anneke, the first Republican Michigan Auditor General, and the father of Percy Shelley Anneke, well known in Duluth, Minnesota, as co-founder and owner of the famous Fitger Brewing Company, now registered as a U.S. National Historic Place.
Relevant evidence: Yes