One might have expected Étienne to follow the same career, for his grandfather had also been a magistrate in Nemours. Étienne's mother was Hélène-Jeanne Filz.
Isa maaaring may inaasahan Etienne upang sundin ang mga parehong karera, para sa kanyang apo ay nagkaroon din ng isang hukom sa Nemours. Etienne ng ina ay Hélène-Jeanne Filz.