Sentence:  By the end of 1809 she was declaring to all and sundry that she would sooner marry 'a <WSD>"pop</WSD>" than the sovereign of a country under the influence of France'. Since a <WSD>pop</WSD> was a Russian Orthodox parish priest, the reference was hardly likely to endear her family to the French. 
Meaning of the word marked with <WSD> tags:  A Russian Orthodox priest; a parson.