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He was a supporter of the duc d'Orléans , and obtained valuable posts at court , becoming Grand Chamberlain of France in 1408 and Grand Maître de France in 1413 .
 duc d'Orléans
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 duc d'Orléans