110978
He was the illegitimate son of King Henry IV of France and his mistress , Gabrielle d'Estrées .
 Henry IV of France, Gabrielle d'Estrées
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Henry IV of France, Gabrielle d'Estrées