Portrait of Daniel de Superville; The doctor Daniel de Superville in his library; half-dressed; dressed in a dressing gown; draped around his head with a cloth. In his right hand he holds a roll of paper with the text: Quantum est quod nescimus. To the left of him is a statue of Aesculapius; the god of health and medicine; with the escula monkey in his hands and an ointment jar at his feet. In the margin under the portrait is the name of the person portrayed; followed by a six-line text. In the center of the margin is a crowned coat of arms flanked by a lion and a cow.; Aesculapius as patron of medicine; Daniel de Superville; Christian Friedrich Fritzsch (mentioned on object); 1744; paper; engraving; h 310 mm x w 207 mm