The Prix de Diane, sometimes referred to as the French Oaks, is one of the most important Group 1 horse races in France open to three-year-old thoroughbred fillies. It is run at Chantilly over a distance of 2,100 metres, and it is scheduled to take place each year in June.

Oskar Dieter Alex von Rosenberg-Redé, 3rd Baron von Rosenberg-Redé, also known as Alexis, Baron de Redé, was a prominent French banker, aristocrat, aesthete, collector, and socialite. In 2003, he was appointed a commandeur of the Ordre des Arts et des Lettres for his restoration of the Hôtel Lambert, where he was known for hosting opulent costume balls. Involved in horse racing, in 1972 he won the Prix de Diane and came in second at the Prix de l'Arc de Triomphe.