Giorgio Vasari mentioned Bonasone only in connection with his prints after Raphael, Giulio Romano, Parmigiaino and other artists from whom Bonasone could possibly get his inspirations. It might be explained by the theory that Vasari had believed that Bonasone worked out of Venice, since he discussed Venetian woodcuts after talking about Giulio's prints. Apparently, Vasari did not have a detailed understanding of Giulio Bonasone's work.
