Bosch, Hieronymus, bosh or bos, hee uh ROH nuh muhs (1450?-1516), was a Dutch painter. He is best known for his imaginative triptychs (three-paneled paintings). Many of his paintings show landscapes full of malformed people, fantastic demons, distorted animals, large and oddly shaped pieces of food, and sometimes unidentifiable objects. His works reflect the influence of Dutch proverbs and puns, popular literature, Biblical parables, witchcraft, alchemy, and astrology.