Popsugar Fashion The Royals Princess Diana's Catherine Walker Dress Up For Auction One of Princess Diana's Most Glamorous Gowns Just Sold in an Auction June 16, 2016 by Allie Merriam First Published: June 2, 2016 View On One Page Photo 3 of 4 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 3 On Diana Princess Diana wore the green Catherine Walker gown on April 14, 1986, when she attended a gala at the Vienna Burgh Theatre in Austria. Previous Next Start Slideshow The RoyalsFashion NewsCatherine WalkerPrincess Diana