Translations for historic in French

Here are paragraphs from public domain books translated:

For nearly a century, the house of Dreux-Soubise had prided itself upon the possession of this historic jewel. Although adverse circumstances had greatly reduced their fortune, they preferred to curtail their household expenses rather than part with this relic of royalty. More particularly, the present count clung to it as a man clings to the home of his ancestors. As a matter of prudence, he had rented a safety-deposit box at the Credit Lyonnais in which to keep it. He went for it himself on the afternoon of the day on which his wife wished to wear it, and he, himself, carried it back next morning.

De ce bijou historique, pendant près d’un siècle, les Dreux-Soubise s’enorgueillirent. Bien que diverses circonstances eussent notablement diminué leur fortune, ils aimèrent mieux réduire leur train de maison que d’aliéner la royale et précieuse relique. En particulier le comte actuel y tenait comme on tient à la demeure de ses pères. Par prudence, il avait loué un coffre au Crédit Lyonnais pour l’y déposer. Il allait l’y chercher lui-même l’après-midi du jour où sa femme voulait s’en parer, et l’y reportait lui-même le lendemain.

The Extraordinary Adventures of Arsene Lupin, Gentleman Burglar, by Maurice Leblanc

Arsène Lupin gentleman-cambrioleur, de Maurice Leblanc