Question: What is the date of death of Princess Amalia Of Nassau-Dietz's husband?
Sentence (from "Princess Amalia of Nassau-Dietz"): Princess Amalia of Nassau-Dietz (Anna Charlotte Amalie; – 18 September 1777) was the wife of Frederick, Hereditary Prince of Baden-Durlach, and mother of Charles Frederick, the first Grand Duke of Baden.
Relevant evidence: Yes