Question: What is the date of death of Ernest Frederick I, Duke Of Saxe-Hildburghausen's mother?
Sentence (from "Ernest Frederick I, Duke of Saxe-Hildburghausen"): Ernest Frederick I, Duke of Saxe-Hildburghausen (21 August 1681 in Gotha – 9 March 1724 in Hildburghausen), was a duke of Saxe-Hildburghausen.
Relevant evidence: No