Statistics for occurrence #1 of “Petra” in book 6, card 92 of M. Annaeus Lucanus, Pharsalia:

...The rampart of his camp. Then marching swift By hidden path between the wooded fields He seeks, and hopes to seize, Dyrrhachium's fort; But Magnus, swifter speeding by the sea, First camped on Petra 's slopes, a rocky hill Thus by the natives named. From thence he keeps Watch o'er the fortress of Corinthian birth Which by its towers alone without a guard Was safe against a siege. No hand of m...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Petra 20 2 0 0 0 user votes
Petra (Kentucky, United States) 0 0 0 0 0 user votes
Petra (Missouri, United States) 0 0 0 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.