Statistics for occurrence #1 of “Port Royal Island” in chapter 5 of George Bancroft, History of the United States from the Discovery of the American Continent, Vol. 3, 15th edition.:

...cinity of the province, especially with the Yamassees, who, from impatience at the attempts at their conversion to Christianity, had deserted their old abodes in Florida, and planted themselves from Port Royal Island along the north-east bank of the Savannah River. The tribes of Carolina had been regarded as a tame and peaceable people; they were very largely in debt for the advances which had been made them;...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Port Royal Island (South Carolina, United States) 130 2 8 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.