Prix Bertrand du Breuil Prix Bertrand du Breuil The Prix Bertrand du Breuil is a Group 3 flat horse race in France open to thoroughbreds aged four years or older. It is run at Chantilly over a distance of 1,600 metres (about 1 mile), and it is scheduled to take place each year in June. The earliest version of the event was established at Chantilly in 1852. Its prize money was originally provided by the Chemin de Fer du Nord, a railway company in northern France and the race was titled the Prix de Chemin du Fer du Nord. The first running was a
Prix du Lys Prix du Jockey Club or the Prix de Diane. The Prix du Lys was cancelled in 1940, and was held at Longchamp in 1941 and 1942. It was run at Le Tremblay over 2,300 metres in 1943 and 1944, and at Longchamp again for three years thereafter. The exclusion of Prix du Jockey Club and Prix de Diane entrants ended in 1970. The race was closed to fillies and opened to geldings in 1986. The Prix du Lys was contested over 2,800 metres at Saint-Cloud from 1993 to 1996. In the following years it was run over 2,600 metres at