オルレアン・コレクション
From 1714 until the purchase was finally concluded in 1721, he worked as agent and negotiator for the Regent, Philippe II, Duke of Orléans, on the purchase in Rome of the art collection of Queen Christina of Sweden for the Orleans Collection. His friend, the sculptor Pierre Le Gros the Younger who was living in Rome, acted as a go-between in the negotiations until his death in 1719.