Hippolyte Boulanger ( 1837 - 1874 ) was a French painter. Hippolyte Boulanger s works have been put up for auction numerous times, with realized prices varying from 190.92 USD for Paysage au fossé in 2006 to 590 USD for Lakeside Landscape with Lily Pads in 2008 , based on the size and medium of the artwork.