Question: What is the date of death of Friedrich, Duke Of Schleswig-Holstein-Sonderburg-Glücksburg's mother?
Sentence (from "Princess Louise Caroline of Hesse-Kassel"): Princess Louise Caroline of Hesse-Kassel (28 September 1789 – 13 March 1867) was the consort of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and the matriarch of the House of Schleswig-Holstein-Sonderburg-Glücksburg, which would eventually become the ruling house of the kingdoms of Denmark, Greece, Norway, and the United Kingdom.
Relevant evidence: Yes