With Royal Wedding fever all around us, we’ve been thinking about purple–the most patrician of colors–and how to use it so it’s glamorous, regal, and youthful, not pompous, stuffy, or old fashioned. Carl D’Aquino shows just how to do it in this fabulous New York City pied-à-terre he and his architect partner, Francine Monaco, designed for a prominent fashionista and her husband. It’s a joyous mix of luxurious fabrics, with deep plum silk taffeta curtains, rich velvets, and fun poppy colors all set against green stucco walls. Periods are blended too, from the 18th-century duchesse brisée, to the gilded Art Deco coffee and nesting tables, and specific pieces that D’Aquino Monaco designed: the sofa, club chairs, and the highly lacquered dining table. The swirls in the area carpet represent the full palette tying it all together. Modern cut crystal jewels in the chandelier compliment the 30-inch-wide antique gold embroidered Italian trim with gilded bobbins on the aristocratic full-width curtains. It’s fit for a king–or a young prince and his new bride.