Nonetheless, the moment reportedly caused some behind-the-scenes tension. One event coordinator even called it “a bit of a nightmare,” as accommodating a senior royal while staying within club rules can be a diplomatic balancing act.

At the time, Meghan was seated elsewhere — not in the Royal Box — and appeared unfazed by the restriction. She reportedly stayed to watch Andy Murray’s match following Serena’s, as both games were on the same court.

Wimbledon’s official guidelines are clear about dress expectations for members and guests in formal enclosures. The list of restricted items includes T-shirts, leggings, hoodies, shorts, sports shoes, oversized hats and bags, and yes — jeans of any kind, even white.

While the duchess’s fashion sense is often praised for blending tradition with modernity, in this case, tradition won out.

And she’s not the only one. Meghan’s sister-in-law Kate Middleton’s younger sister, Pippa, also reportedly faced similar dress-related restrictions in the past — a reminder that even those close to the royal circle aren’t exempt from the rules of the world’s most prestigious tennis tournament.