Jean louis (demarnette) Demarne (after) ( 1752 - 1829 ) was a French painter. Jean louis (demarnette) Demarne (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 370.12 USD for La promenade du matin in 2005 to 998.71 USD for A wooded river landscape with a drover crossing a bridge with his cattle in 2011 , based on the size