Charles Robert ( 1923 - 1960 ) was a French painter. Charles Robert s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 149.5 USD for Femme assise. 1949. in 2006 to 8807.38 USD for Le déjeuner sur l′herbe. in 2014 , based on the size and medium of the artwork.