Question: What is the date of death of Princess Caroline Wilhelmina Sophia Of Hesse-Kassel's husband?
Sentence (from "Frederick Augustus, Prince of Anhalt-Zerbst"): He was the second and sole surviving son of Christian Augustus, Prince of Anhalt-Zerbst (since 1742 of all Anhalt-Zerbst) by his wife Johanna Elisabeth of Holstein-Gottorp, daughter of Christian August of Schleswig-Holstein-Gottorp, Prince of Eutin, and was a younger brother of Russia's Catherine the Great.
Relevant evidence: No