Gregorio Guglielmi ( 1714 - 1773 ) was an Italian painter. Gregorio Guglielmi s works have been put up for auction numerous times, with realized prices varying from 5801.62 USD for La Madonna, Sant’Anna, San Giuseppe fra due Santi in 2006 to 7003.41 USD for Olympus in 2019 , based on the size and medium of the artwork.