Jacob Cornelisz. van Oostsanen (1465/1470-1533) Little is known about the life of Jacob Cornelisz. Biographer Karel van Mander states that he was born in Oostzaan, a village north of Amsterdam. He probably served his apprenticeship in Haarlem, in the circle of Geertgen tot Sint Jans and seems also to have worked in Amsterdam. Most of his commissions were for religious wo...