Nicolas Cattelain is a collector, writer, and philanthropist. After a career in capital development in London, he now dedicates his time to his passion for the arts, particularly the decorative arts of the eighteenth century. He regularly supports publications in this field and is involved with several museums in Europe and the United States. He is President of the Fondation du Château de Bagatelle, which, under the aegis of the Fondation Mansart, is carrying out the renovation and reopening of the estate to the public.