Giovanni Francesco Barbieri (February 8, 1591 — December 9, 1666), best known as Guercino or Il Guercino, was an Italian Baroque painter from the region of Emilia, and active in Rome and Bologna. Guercino is Italian for squinter, a nickname that was given to him because he was cross-eyed. He is especially noted for his many superb drawings.
Guercino was born at Cento, a village between Bologna and Ferrara.
By the age of 17 he was associated with Benedetto Gennari, a painter of the Bolognese School. By 1615 he moved to Bologna, where his work earned the praise of an elder Ludovico Carracci. He painted two large canvases, Elijah Fed by Ravens and Samson Seized by Philistines, in what appears to be a stark naturalist Caravaggesque style (although it is unlikely he had been able to see any of the Roman Caravaggios first-hand). They were painted for Cardinal Serra, Papal Legate to Ferrara.
The Arcadian Shepherds (Et in Arcadia ego) was painted in 1618 contemporary with The Flaying of Marsyas by Apollo in Palazzo Pitti. His first style, he often claimed, was influenced by a canvas of Carracci in Cento. Some of his later pieces approach rather to the manner of his great contemporary Guido Reni, and are painted with more lightness and clearness. Guercino was esteemed very highly in his lifetime.