The Château de Louveciennes in Louveciennes, in the Yvelines département of France, is composed of the château itself, constructed at the end of the 17th century. It was then expanded and redecorated by Ange-Jacques Gabriel for Madame du Barry in the 18th century, and the music (or reception) pavilion was constructed by Claude Nicolas Ledoux (1770–71). The pavilion sits in the middle of a park that was designed in the 19th century.