Pierre Louys ( 1870 - 1925 ) was a French painter. Pierre Louys s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 546.02 USD for Pybrac in 2005 to 13286.31 USD for Études érotiques, Paris, 1890-1900 in 2009 , based on the size and medium of the artwork.