Question: What is the date of death of Prince Harald Of Schaumburg-Lippe's mother?
Sentence (from "Prince Frederick of Schaumburg-Lippe"): Prince Frederick of Schaumburg- Lippe( 30 January 186812 December 1945) was a German prince and head of the Náchod branch of the princely house of Schaumburg- Lippe.
Relevant evidence: No