Although he considered himself a painter of history in the tradition of Nicolas Poussin and Jacques-Louis David , by the end of his life it was Ingres 's portraits , both painted and drawn , that were recognized as his greatest legacy . Although he considered himself to be a painter of history in the tradition of Nicolas Poussin and Jacques-Louis David , by the end of his life it was Ingres 's portraits , both painted and drawn , that were recognized as his greatest legacy .