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These were destroyed by Gérard du Puy , the cardinal-nephew of Pope Gregory XI ( 1370 – 1378 ) .
 Gérard du Puy, Pope Gregory XI
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gérard du Puy, Pope Gregory XI