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 12 of 44 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 12 Mellow Yellow The Princess of Wales topped her Summerside ensemble with a pastel yellow plumed hat in June 1983. Previous Next Start Slideshow Princess DianaHats