Gabriel Charles Deneux ( 1856 - ) is a French painter. Gabriel Charles Deneux s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 313.06 USD for Pornichet, août 84 in 2005 to 46250.99 USD for Les peintres de retour du Mont Saint-Michel in 2012 , based on the size and medium of the artwork.