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Early life Arthur Paul Nicholas ( or Arturo Pavlovich Nicolas ) Cassini was born in 1836 into a noble Russian family of Italian lineage which first entered the service of the Czar during the Napoleonic Wars .
 Arthur
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Arthur