The materials of the old castle served to furnish walls for the palaces of the Rambouillets and the Mercœurs, historic names in every age of the national annals. Here they kept their state, until Cardinal Richelieu, either by fair means or foul, it mattered little to him, bought and destroyed their spacious mansions, pulled down all that remained of the castle walls, filled up the ditches, levelled the earth, and, on the ill-omened spot, raised the sumptuous pile known as the Palais Cardinal, near, yet removed from, the residence of the sovereign at the Louvre. The principal buildings ran round an immense central square, or courtyard, planted symmetrically with trees and adorned with fountains and statues. From this central square four other smaller courts opened out towards each point of the compass. There was a chapel splendidly decorated, and, to balance that, two theatres, one sufficiently spacious to hold three thousand spectators, painted on panel by Philippe de Champagne. There were ballrooms furnished with a luxury unknown before; boudoirs—or rather bowers—miracles of taste and elegance; galleries filled with pictures and works of art, and countless suites of rooms, in which every decoration and adornment then practised were displayed. Over the grand entrance in the Rue Saint-Honoré appeared, carved in marble, the arms of Richelieu, surmounted by a cardinal's hat and the inscription "Palais Cardinal." Spacious gardens extended at the rear. Still the Cardinal, like Wolsey at Hampton Court, added wall to wall of the already overgrown palace, and bought up street after street within the city to extend the gardens, until even the subservient Louis showed some tokens of displeasure. Then, and not till then, did the Cardinal cease building. At his death he presented his palace to the sovereign; and from that day to this the Palais Cardinal, now Palais Royal, has become an appanage of the State.