Gianbettino Cignaroli ( 1706 - 1772 ) was an Italian painter. Gianbettino Cignaroli s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 836.13 USD for Madonna med barnet tilbedes af helgener. in 2004 to 305000 USD for LEDA AND THE SWAN in 2014 , based on the size and medium of the artwork.