Peter Phillips was joined by his girlfriend, Harriet Sperling, and his royal cousins as they watched the action at the Formula 1 Bahrain Grand Prix over the weekend.
Princess Anne's son, 47, attended the sporting event in his capacity as head of partner acquisition for the sports and entertainment rights agency, Wasserman.
But Peter also got to enjoy quality time with NHS nurse Harriet on the grid, as well as his sister and brother-in-law, Zara and Mike Tindall, and their cousins, Princess Beatrice and Princess Eugenie.
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HELLO! understands that Peter's daughters, Savannah, 14, and Isla, 13, were also on the trip, as well as Harriet's daughter.
Harriet was seen beside her beau, wearing what appeared to be a light-blue, short-sleeved midi dress.
Harriet could be seen standing behind Peter in a blue dress
Peter's romance with the Paediatric Nurse Specialist was first confirmed last May as he was pictured hand-in-hand with Harriet at the the Badminton Horse Trials.
Since then, the couple have made a number of high-profile appearances together, including Royal Ascot, Wimbledon and the Prince of Wales's charity polo match in Windsor.
Zara was pictured alongside her niece, Savannah (right), as she chatted to Formula 1 presenter Lee McKenzie and British former racing driver, David Coulthard.
Peter caught up with his cousins, Princess Beatrice and Princess Eugenie, on the racecourse, who travelled to Bahrain with their respective husbands, Edoardo Mapelli Mozzi.
Beatrice opted for a geometric shirt dress from Sezane, while Eugenie looked effortlessly cool in a forest green bias-cut number from Reformation with white sunglasses.
For the final race day, Zara looked glam in a black one-shoulder dress from ME+EM, with brown sunglasses and chunky gold earrings.
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