Question: James Stanier Clarke was the librarian to which King of Hanover?
Sentence (from "George IV of the United Kingdom"): George IV (George Augustus Frederick; 12 August 1762 – 26 June 1830) was King of the United Kingdom of Great Britain and Ireland and of Hanover following the death of his father, George III, on 29 January 1820, until his own death ten years later.
Relevant evidence: Yes