Stefano Di Giovanni Sassetta ( 1423 - 1450 ) was a Italy painter. Stefano Di Giovanni Sassetta s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from USD for in to a remarkable record 1136000 USD for Saint Augustine, a pinnacle of the Borgo Sansepolcro Altarpiece in 2006 , based on the size and medium of the artwork.