Nor did a little June drizzle put her off as Wills and Prince Harry competed together in a match at Cirencester Park Polo Club on Sunday. Casually dressed in a pair of summery wedges, jeans and a cropped leather jacket, the 27-year-old looked poised and relaxed as she watched teams battle it out for the Dorchester Trophy at Britain's oldest polo club.
It was an action-packed weekend for the royal siblings. The previous day they'd taken part in a match at London's Ham Polo Club.
The young Princes were not the only royals enjoying a sporty weekend. Princess Beatrice was among enthusiasts at the three-day Polo In The Park event on Sunday with her 24-year-old boyfriend Dave Clark, who works for the Virgin Galactic sub-orbital tourism company. And it seems the Duchess of York's 20-year-old daughter laments the fact that she never learnt the game. "I really wish I could play, but I don't at all," she confessed.