After being invited by the Comte de Pourtalès to lease a three-story apartment on the grounds of his palace near Paris, AD100 designer Juan Pablo Molyneux refurbished the 17th-century structure at Château du Marais with rich tones to suit his grand style. An 18th-century gilt-wood chandelier hangs above a Régence bureau plat, a Louis XVI armchair, and a rug from the 19th century; the oil painting is from the 18th century