35954
Rome was the leading Patriarchate of the ancient four by virtue of its founding by Saints Peter and Paul and their martyrdom there , not to mention being the political center of the Roman empire at the time .
 Rome, Saints Peter and Paul, Roman empire
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rome, Saints Peter and Paul, Roman empire