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.

Treve is a French Thoroughbred racehorse who was the 2013 European Horse of the Year after being unbeaten in four races as a three-year-old. These included the Prix de Diane, Prix Vermeille and Prix de l'Arc de Triomphe.