In 1647, André Félibien, the secretary of the French Embassy in Rome, became a friend and painting student of Poussin, and published the first book devoted entirely to his work. His growing number of French patrons included the Abbé Louis Fouquet, brother of Nicolas Fouquet, the celebrated superintendent of finances of the young Louis XIV. In 1655 Fouquet obtained for Poussin official recognition of his earlier title as First Painter of the King, along with payment for his past French commissions. To thank Fouquet, Poussin made designs for the baths Fouquet was constructing at his château at Vaux-le-Vicomte.