Johann Kupetzky ( 1667 - 1740 ) was a painter. Johann Kupetzky s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 10659.23 USD for Portrait of Prince Eugene of Savoie in 2004 to 44985.94 USD for Portrait of Susanna Klaus, the wife of the artist, half-length, in a white dess and brown shawl, holding a book in her right han in 2006 ,