The Duke and Duchess weren't in attendance this year, so it was up to another rising royal star to steal the show.
Princess Beatrice looked radiant as she attended the ARK gala, clad in a casual dress that she teamed with a black blazer.
She was accompanied by boyfriend Dave Clarke, who looked delighted to be at the swanky bash in the capital.
They were joined by a host of other famous faces including Carey Mulligan, Eva Herzigova and Holly Valance.
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