Question: When did Prince Heinrich Of Hesse-Kassel's mother die?
Sentence (from "Maximilian of Hesse-Kassel"): Maximilian of Hesse- Kassel( 28 May 1689 – 8 May 1753) was a prince of Hesse- Kassel and a Generalfeldzeugmeister, Generalfeldmarschall and finally Reichsgeneralfeldmarschall in the army of the Holy Roman Empire.
Relevant evidence: No