One of the predecessors of the great masters of the Dutch Golden Age was Jacob Cornelisz van Oostsanen (c. 1475-1533). In his day Van Oostsanen already was a celebrated artist, well known for his paintings drawings, stained-glass windows and other objects of art. At Alkmaars Grote Sint Laurens Kerk (Great St. Lawrence Chucrh) , completed around 1520, The ‘Last Judgement’ by Van Oostsanen, a ceiling painting dating from 1518, can be admired in full glory after its restoration was completed in 2011. Other works by Van Oostsanen are presented in two museums, the Stedelijk Museum Alkmaar and the Amsterdam Museum. The Stedelijk Museum Alkmaar features a near complete art-historical survey of the life and work of the artists. The Amsterdam Museum tells the sory of Amsterdam and the workshop of the artist around 1500. His workshop in Amsterdam was highly productive and attracted patrons from Holland and abroad. The story of the artist as cultural entrepreneur is told with reference to his major artworks.