Both sisters kept their hair loose and opted for a natural make-up look.

It is unknown if Eugenie’s son August, 13 months, or Beatrice’s daughter Sienna, travelled to the Middle East with them.

Princess Eugenie and Princess Beatrice looked happy and relaxed with their husbands as they enjoyed the Formula 1 Grand Prix.

Fans took to social media to comment on the royals’ fashion choices.