Question: What is the date of death of Frederika Charlotte Riedesel's husband?
Sentence (from "Friedrich Adolf Riedesel"): zu Eisenbach (3 June 1738 in Lauterbach/Hesse – 6 January 1800 in Braunschweig) was a German officer who served in the Seven Years' War and American War of Independence.
Relevant evidence: Yes