The site is especially suitable for its museum because, when the château had been purchased by a wealthy bourgeois of Grenoble, Claude Perier, who installed a manufacturer of printed fabrics in it, the three estates of the realm, convoked in Grenoble as the "Assemblée des notables" but forbidden to meet in the city, were welcomed here, 21 July 1788. They met in the "salle du jeu de paume", where their deliberations opened a new chapter in the history of France.