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Henry of Asti ( Enrico d'Asti ; died 17 January 1345 ) was the titular Roman Catholic patriarch of Constantinople from 1339 and bishop of Negroponte in Frankish Greece .
 Roman Catholic, Negroponte
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Roman Catholic, Negroponte