246003
Members of the family As he inherited not only his father 's fortune , but that of his cousins , the duc de Penthièvre was said to be , and probably was the wealthiest man in France .
 duc, Penthièvre
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, Penthièvre