Jean Baptiste Regnault ( 1754 - 1829 ) was a French painter. Jean Baptiste Regnault s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 687 USD for Ovid as the Author of the Ars Armatoria in 2016 to 1524.53 USD for Alexander und Diogenes. in 2019 , based on the size and medium of the artwork.