Popsugar Fashion Princess Diana Princess Diana's Most Stylish Hats We're Tipping Our Hats to Princess Diana's Timeless Toppers August 31, 2015 by Mandi Villa View On One Page Photo 21 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 21 Derby Darling Diana doubled up on polka dots at the 1986 derby at Epsom racecourse in Surrey. Previous Next Start Slideshow Princess DianaHats