With the hotly-anticipated Royal wedding of Prince Harry and Meghan Markle on the 19 May at Windsor Castle fast-approaching, celebrations to mark the nuptials are being planned to coincide with the big day. From traditional British street parties to lavish receptions in Ms. Markle's native America, well-wishers from around the world are preparing for this historic event. To get the party started, we offer some style inspiration from across our spring and summer sales to help choose the perfect hat for the occasion.