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Reign Pedro married his niece Maria , Princess of Brazil , in 1760 , at which time she was the heiress presumptive to the throne then held by his brother José I. According to custom , Pedro thus became king of Portugal in right of his wife .
 Maria , Princess of Brazil, José, Portugal
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Maria , Princess of Brazil, José, Portugal