Marten Ryckaert (after) ( 1587 - 1631 ) was a Dutch painter. Marten Ryckaert (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 387.39 USD for A landscape with a shepherd and his flock on a track in 2004 to 6051.1 USD for A RIVER LANDSCAPE WITH A WATERMILL in 2006 , based on the size and medium of the artwork.