 Avenues led directly from the park of the chateau into the adjacent game-rich forest.More than 200 square kilometres of forest remain, the remnant of the Forest of Rambouillet, also known as "Forêt d'Yveline" or "Forêt de l'Yveline".In 1783, the château became the private property of king Louis XVI, who bought it from his cousin, the duc de Penthièvre, as an extension of his hunting grounds.