Egnatius Ydema ( 1876 - 1937 ) was a Dutch painter. Egnatius Ydema s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 840.29 USD for Trees in a polder landscape in 2004 to 3520.3 USD for Sailing boats on the river the Zwarte Water, Hasselt in 2009 , based on the size and medium of the artwork.