Gregorio Preti ( 1603 - 1672 ) was an Italian painter. Gregorio Preti s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 6769.46 USD for SANT´AGOSTINO in 2004 to 78839.48 USD for Convivial reunion at an initiation ceremony? in 2006 , based on the size and medium of the artwork.