Giovanni Francesco Barbieri Guercino (after) ( 1591 - 1666 ) was an Italian painter. Giovanni Francesco Barbieri Guercino (after) s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 152.21 USD for La Vierge et l´qenfant tenant un oiseau in 2004 to 241996.95 USD for Charity in 2012 , based on the size and medium of the artwork.