Cornelis Corneliszoon van Haarlem (1562 – 11 November 1638), Dutch Golden Age painter and draughtsman, was one of the leading Northern Mannerist artists in the Netherlands, and an important forerunner of Frans Hals as a portraitist. Born in Haarlem, Cornelis Corneliszoon was a pupil of Pieter Pietersz in Haarlem, and later Gillis Coignet in Antwerp. He is known among art historians as a member of the Haarlem Mannerists, who were highly influenced by the work of Bartholomeus Spranger, whose drawings were brought to Haarlem by Carel van Mander in 1585, and had a strong immediate effect. He painted mainly portraits as well as mythological and Biblical subjects. Initially Cornelis Cornelisz painted large-size, highly stylized works with Italianate nudes in twisted poses with a grotesque, unnatural anatomy. Later, his style changed to one based on the Netherlandish realist tradition. When his parents fled Haarlem in 1568, as the Spanish army laid siege to the city during the Eighty Years' War, Cornelis Cornelisz remained behind and was raised by the painter Pieter Pietersz the Elder, his first teacher. Later, in 1580-1581 Corneliszoon studied in Rouen, France, and Antwerp (with Coignet), before returning to Haarlem, where he stayed the rest of his life. He became a respected member of the community and in 1583 he received his first official commission from the city of Haarlem, a militia company portrait, the Banquet of the Haarlem Civic Guard. He later became city painter of Haarlem and received numerous official commissions. As a portrait painter, both of groups and individuals, he was an important influence on Frans Hals. He married Maritgen Arentsdr Deyman, the daughter of a mayor of Haarlem, sometime before 1603. In 1605, he inherited a third of his wealthy father-in-law's estate. Together with Carel van Mander, Hendrick Goltzius and other artists, he started an informal drawing school that has become known... (https://en.wikipedia.org/wiki/Cornelis_van_Haarlem) undefined

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