By 1763, the Faubourg Saint-Germain had replaced Le Marais as the most fashionable residential neighborhood for the aristocracy and the wealthy, who built magnificent private mansions, most of which later became government residences or institutions: the Hôtel d'Évreux (1718–1720) became the Élysée Palace, the residence of the presidents of the French Republic; the Hôtel Matignon, the residence of the prime minister; the Palais Bourbon, the seat of the National Assembly; the Hôtel Salm, the Palace of the Legion of Honor; and the Hôtel de Biron eventually became the Rodin Museum.[75]