Joan Blaeu ( 1598 - 1673 ) was a Dutch painter. Joan Blaeu s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 126.83 USD for Cumbria vulgo Cumberland in 2004 to 10390.26 USD for V.O.C Portolan Chart in 2007 , based on the size and medium of the artwork.