After the fall of Napoleon in 1814, the Bourbon monarchy was restored under Louis XVIII, but preserved some of the democratic institutions begun during the Revolution. The new government, like the Directory, featured a legislature with two houses, the Chamber of Deputies and the Senate. The Palais Bourbon was formally returned to its aristocratic owner, the Prince of Condé, who had returned from exile. However, the building had been so modified it was impossible to use as a residence; the Prince rented a large part of the Palace to the new Chamber of Deputies. The first modification made by the new government, in July, 1815, just a month after Napoleon's final defeat at Waterloo, was to erase the inscription to Napoleon, the five bas-reliefs and the numerous Ns and eagles that had been carved on the facades. The bas-relief featuring Napoleon on tn the Seine facade was replaced by a plaster bas relief by Alexandre-Évariste Fragonard of Louis XVIII signing the Charter of 1814, the founding document of the new government. The Chamber of Deputies continued to rent the space until 1827, when it finally bought the building from the heir of the Prince of Condé in 1827, for 5,250,000 francs.