30774
According to the former , the empire was a universal monarchy , a " commonwealth of the whole world , whose sublime unity transcended every minor distinction " ; and the emperor " was entitled to the obedience of Christendom " .
 Christendom
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Christendom