Judith Leyster (after) ( 1600 - 1660 ) was a Dutch painter. Judith Leyster (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 750 USD for PORTRAIT OF A GENTLEMAN in 2005 to 2072.37 USD for A boy and a cat in 2006 , based on the size and medium of the artwork.