Question: What is the date of death of Louis Augustus Karl Frederick Emil, Duke Of Anhalt-Köthen's father?
Sentence (from "Louis Augustus Karl Frederick Emil, Duke of Anhalt-Köthen"): He was the second (but only surviving son) of Prince Louis of Anhalt-Köthen by his wife Princess Louise of Hesse-Darmstadt, daughter of the later (1806)
Relevant evidence: Yes