Claude Louis Langlois ( 1757 - 1845 ) was a French painter. Claude Louis Langlois s works have been put up for auction numerous times, with realized prices varying from 1321.74 USD for Ovaal portret van een edelman in 2005 to 1442.59 USD for Ovaal portret van een edelman in 2005 , based on the size and medium of the artwork.