Popsugar Fashion Celebrity Fashion Kate Middleton Wearing Purple Oscar de La Renta Outfit Important News: Kate Middleton Just Wore This Famous Designer For the Very First Time 8 February, 2017 by Marina Liao View On One Page Photo 1 of 5 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 At First Glance Kate Middleton's Outfit Looks Familiar, but It's Actually Brand New The Duchess of Cambridge, along with Prince William, attended the Guild of Health Writers conference. Previous Next Start Slideshow Celebrity FashionOscar De La RentaThe British RoyalsKate MiddletonThe Royals