On her: Duchess silk suit by Valentino, $6,150; satin pumps with rhinestone detail by Vera Wang, $500 at Barneys New York; ivory cotton-lace-covered Juliet cap with Swarovski crystals and velvet rosebuds by Makins Hats Ltd., $675.

On him: Super 100 handmade flannel suit by Oxxford Clothes, $2,655; button-down by Spencer Hart, $325 at Bergdorf Goodman; silk tie by Giorgio Armani, $135; velvet slip-on shoes by Ralph Lauren, $695.

The Setting: Chair in Sacho Hesslein silk by George Smith, $2,480.