Statistics for occurrence #1 of “Pope Pius” in entry tripoli-war-with of Harper's Encyclopedia of United States History:

...ucceeded Barron, and he sent an ambassador to the United States. The Barbary States now all feared the power of the Americans. and commerce in the Mediterranean Sea was relieved of great peril. Pope Pius VII. declared that the Americans had done more for Christendom against the North African pirates than all the powers of Europe united.
...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† 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.