Sulpice guillaume Chevalier ( 1804 - 1866 ) was a French painter. Sulpice guillaume Chevalier s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 598.54 USD for Les Frères Goncourt in 2008 to 1161.1 USD for Si mon pince-nez m'empêche de voir, ça ne regarde personne in 2014 , based on the size and medium of the artwork.