Question: What is the date of death of Augustus Louis, Prince Of Anhalt-Köthen's mother?
Sentence (from "Gisela Agnes of Rath"): Gisela Agnes of Rath (9 October 1669 in Kleinwülknitz, now part of Köthen – 12 March 1740 in Nienburg) was Duchess of Anhalt-Köthen by marriage from 1692.
Relevant evidence: Yes