The artist consulted Plato’s “Phaedo” and a variety of sources including Diderot’s treatise on dramatic poetry and works by the poet André Chenier. The pose of Plato, the figure seated in profile at the foot of the bed (who was not actually present at the scene), was reportedly inspired by the English novelist Richardson. The printmaker and publisher John Boydell, writing to Sir Joshua Reynolds, called The Death of Socrates “the greatest effort of art since the Sistine Chapel and the stanze of Raphael,” further observing that the painting “would have done honor to Athens at the time of Pericles.”