Léon Joseph Florentin Bonnat (after) ( 1833 - 1922 ) was a French painter. Léon Joseph Florentin Bonnat (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 225 USD for ROMAN GIRL AT FOUNTAIN. in 2011 to 697.83 USD for Study of a male model in 2017 , based on the size and medium of the artwork.