La Cavalière masquée: Prix de Diane Longines, Diane’s Avenues \ by Aurélie Prix de Diane Longines, June 12, 2011. Location: Hippodrome de Chantilly, The Gardens of Diane – Diane’s Avenues Posted in: Events \ Tagged: Diane's Avenues, Hippodrome de Chantilly, La Cavalière masquée, Masked Horse, Prix de Diane Longines, The Gardens of Diane