Question: When did Prince Christian Of Hesse's mother die?
Sentence (from "Prince Christian of Schaumburg-Lippe (1898–1974)"): Prince Christian of Schaumburg- Lippe( 20 February 1898 – 13 July 1974) was a German prince and head of the Náchod branch of the princely house of Schaumburg- Lippe.
Relevant evidence: No