Kate Middleton marked Cancer Research UK’s 125th anniversary on Tuesday, June 2, at St. James’s Palace in London, and the reason people are talking about the reception is not hard to see. The Princess of Wales arrived in a red, polka-dot printed silk twill midi dress by Rodarte, a choice that stood out as an unexpected designer outfit for a royal engagement built around a serious cause.
The event brought her together with King Charles III and Queen Camilla, and it was the first time the princess and the king had stepped out together in support of a cause that is personal to both of them. In 2024, each announced within weeks of the other that they had been diagnosed with cancer, a fact that gave the anniversary gathering a different weight from a routine palace appearance.
Cancer Research UK is the world’s largest independent cancer research organization, and the reception was meant to showcase its work through the people who make it possible: researchers, doctors, and volunteers. That is what made the evening more than a ceremonial stop on the royal calendar. It was a public show of support for an institution that has spent 125 years pushing cancer research forward, with the king now serving as its primary patron after decades of backing cancer research charities.
The styling was familiar even if the label was not. Middleton paired the Rodarte dress with a Miu Miu purse and red Gianvito Rossi pumps, then added a ruby pendant necklace and matching diamond earrings. Rodarte, the Pasadena-based label overseen by sisters Kate and Laura Mulleavy, is not the name most observers would have expected for a moment this closely watched, which is exactly why the look landed. The dress was polished, elegant and in step with her usual taste, but the designer gave the appearance a sharper edge of surprise.
That surprise matters because the princess’s public return to cancer-related engagements now carries a very specific meaning. She announced in 2025 that she was in remission after completing preventative chemotherapy in the fall of 2024, while Charles is still undergoing treatment for an unspecified cancer. For that reason, the question hanging over the reception is not what she wore so much as what the shared appearance signals: that the monarchy is choosing to treat cancer not only as a private battle but as a cause to be seen supporting together, in public, at a milestone that will not come around again.
