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He was born in Rotterdam , the son of merchant Gabriel Marselis , Sr. ( c. 1575 – 1643 ) , and was a brother of Gabriel Marselis and Leonhard Marselis .
 Rotterdam
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rotterdam