Prix de Royaumont introduced in 1978, and the race was moved to a date earlier than that of the Prix de Diane. The event was staged at Longchamp from 1987 to 1990, and it was transferred to Saint-Cloud in 1991. Its distance was extended to 2,400 metres in 1992, and it continued to take place at Saint-Cloud until 1996. The race's only subsequent departure from Chantilly was in 2001, when it was run at Saint-Cloud. The Prix de Royaumont is now held on the same day as the Prix du Jockey Club. Prix de Royaumont The Prix de Royaumont is a Group 3
Prix Hocquart Prix Hocquart The Prix Hocquart is a Group 2 flat horse race in France open to three-year-old thoroughbred colts and fillies. It is run over a distance of 2,200 metres (about 1 mile and 3 furlongs) at Longchamp in May. The event was established in 1861, and it was originally called the Prix de Longchamps. In the early part of its history its distance was 2,500 metres. Due to the Franco-Prussian War, it was not run in 1871. The Prix de Longchamps was one of several trials for the Prix du Jockey Club collectively known as the Poules des Produits.