Vos, Cornelis de (kôrnāˈlĭs də vōs) [key], 1584–1651, Flemish portrait and figure painter. He was a contemporary of Rubens, who sent many sitters to him. Although of the school of Rubens, Vos developed an individual style of portraiture in which cool grays predominate. His representations of children were particularly successful. An example of his many portraits is that of Abraham Grapheus (Antwerp). His brother, Paulus de Vos, c.1596–1678, was an excellent painter of animals and hunting scenes. His paintings show the influence of his brother-in-law, Frans Snyders. His work is best seen in the museums of Madrid and St. Petersburg.