This is a copy after a statue formerly in the Farnese collection, Rome and now in the Museo Nazionale, Naples. Other copies by Girolamo da Carpi after this figure are in the Louvre (no. 10933), and in the Roman Sketchbook in the Rosenbach Foundation, Philadelphia, N. W. Canedy, The Roman Sketchbook of Girolamo da Carpi, London, 1976,