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Julius ' marriage may have been part of a pattern of family patronage : " marriage into the imperial family was a highly advantegeous affair , and marriage to an emperor 's daughter allowed the son-in-law to hope for the purple " .
 Julius
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Julius