Question: When did Christian Vi Of Denmark's mother die?
Sentence (from "Anna Sophie Magdalene Frederikke Ulrikke"): Anna Sophie Magdalene Frederikke Ulrikke (born in 1730 or 1740 – died 22 January 1805) was a Danish con artist who in 1766 demanded a pension from the Danish royal house with the claim that she was the illegitimate daughter of King Christian VI of Denmark and the king's sister-in-law, the Dowager Princess of Ostefriesland, Sophie Caroline of Brandenburg-Kulmbach (1707–1764).
Relevant evidence: No