Question: Who is Princess Wilhelmina Caroline Of Denmark's mother-in-law?
Sentence (from "Princess Wilhelmina Caroline of Denmark"): Princess Wilhelmina "Caroline" of Denmark and Norway  (10 July 1747 in Christiansborg Palace, Copenhagen – 14 January 1820 in Kassel), was the Landgravine consort of Hesse-Kassel and later the Electress of Hesse-Kassel by marriage to William I, Elector of Hesse.
Relevant evidence: Yes