The gesture has great significance. - by Jess Pullar 27 Apr 2021 Prince William and Kate Middleton are approaching a major milestone in the coming week, but there's one person who they'll pay tribute to amidst the celebrations. WATCH: Princess Diana Channels Cinderella In Never Before Seen Wedding Video And whether you were around to see it or not, you'll likely be well familiar with the item they'll be using to do so. Announced by the Historic Royal Places trust on Monday evening, it has now been confirmed the wedding dress of Diana, Princess of Wales will be going on display at Kensington Palace.