This story is known to at least everyone who has read the novel Foxes in the Vineyard by Lion Feuchtwanger.
https://otherstuff.shaving.kiwi/29601a07caa9254df0f6294b56c4d471b07c80110978096390685c27f62c374e.webp
Benjamin Franklin, serving as an envoy at the French court, was negotiating for trade and military support from France for the newly established USA. He leaned into the stereotypes about Americans, so for public events and court visits, he deliberately dressed in the simplest clothes possible and did not wear a wig, despite court protocol.
This kind of behavior can be interpreted in different ways. At that time, he was a social sensation and was received positively. In an engraving by Geller, the Duchess de Polignac is depicted placing a laurel wreath on his head.
Via Vláďa Krupa (https://www.facebook.com/share/p/1BVT7zcWsZ/)