Leoncillo Leonardi ( 1915 - 1968 ) was an Italian painter. Leoncillo Leonardi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2088.77 USD for Piccolo concerto in 2004 to 415926.85 USD for SAN SEBASTIANO BIANCO in 2019 , based on the size and medium of the artwork.