Giovanni Francesco Barbieri (1591 - 1666), best known as Guercino, or Il Guercino, was an Italian Baroque painter and draftsman from the region of Emilia, and active in Rome and Bologna. The vigorous naturalism of his early manner is in contrast to the classical equilibrium of his later works. His many drawings are noted for their luminosity and lively style. Guercino was remarkable for the extreme rapidity of his executions: he completed no fewer...