Statistics for occurrence #1 of “Rockingham” in chapter 23, page 427 of George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 5, 13th edition.:

... House of Commons, that nothing but the repeal of the Stamp Act would satisfy America. Yet the opponents of concession claimed for their side the name of the king, whose opinions they declared that Rockingham had falsified. The irritated chief summoned the author of the rumor to meet him at the palace. There, on Wednesday, the twelfth of February, they went into the closet alternately, two or three t...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Rockingham 392 66 2 0 0 user votes
Richard Rockingham 2 0 2 0 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.