The former First Daughter, 41, made a low-key appearance at the lavish occasion on 1 June, where she was spotted in conversation with Prince William - who attended with the Princess of Wales.
Last year Britain registered a net migration rate of 606,000, with 1.2 million immigrants entering the country, thanks largely to work visas offered to.
It is definitely a telling tale of our royally confused times that Charles, Camilla, Cleopatra and Charlotte find themselves pawns in the same game of racial roulette