The two brought a regal elegance to the A-list event and proved they've both got a knack for understated, stylish dressing and accessorising. (Loving the boxy clutch bags, ladies.)Beatrice looked amazing in a white organza dress by Nicholas Oakwell - think 1950s style, floral applique detailing from the bodice down and sheer cap-sleeved top. The lilac sandals and the lime green hand-held? Very well played and so on trend.
Princess Beatrice and Dave Clark were also all smiles as they mingled with the likes of Suki Waterhouse, Bradley Cooper, Alexa Chung and Cara Delevingne. Oh to have been sipping on champagne and busting out our best moves to Pharrell's DJ set with this celebrity clique.
LOVE A CELEBRITY 'DO WITH A ROYAL APPEARANCE? So do we, so do we. Take a look through this gallery to see all of last night's glitzy, completely glamorous guests mingling.