It seems that Hieronymous Bosch was the goofiest painter of the Renaissance. He single-handedly brought the grotesque to the highest level. Along with his hard nosed moral depictions and allegorical forays, Bosch brought the ugly every-day burger into his work. Even his renderings of Christ have a dopey schlubb kind of expression. There is almost nothing contemporaneously written about him and little else known, but, he has always been one of my favorites.