Princess Beatrice, who turns 37 today (August 8), and her sister, Princess Eugenie, are not working royals so we don't see them attending state occasions where they will wear a tiara. The Everything We Know About Princess Eugenie's Wedding Dress Marie Claire Panelled Ruffle Evening Gown in Black 10 Oh Polly Princess Beatrices Dress By Ralph Russo Editorial Stock Photo Stock Image Shutterstock Editorial Princess Eugenie of York Wedding to Jack Brooksbank Details Princess Eugenie and Zara Tindall's bold looks resurface as Mike Tindall makes admission