Statistics for occurrence #1 of “Robert Charles” in entry winthrop-john of Harper's Encyclopedia of United States History:

...), 1662. While attending the Congress of the New England Confederacy in Boston as delegate from Connecticut, Winthrop was seized with an illness that caused his death, April 5, 1676. Winthrop, Robert Charles
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Entity Corpus Doc Corpus Doc  
† Robert Charles 2 2 0 0 0 user votes
Robert Charles Winthrop 23 23 1 1 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.