Those familiar with the Duchess of Cambridge’s wardrobe will know that her pair of Castañer espadrille wedges have become a staple of her summer dress code. But Kate isn’t the first star to show allegiance with the Spanish brand. In fact, Grace Kelly and Salvador Dali were exercising Castañer’s beach-ready potential nearly a century earlier, while Oprah, Alexa Chung and Rosie Huntington-Whiteley have worn the platformed version of the espadrille in recent years.