Johannes Dunz ( 1645 - 1736 ) was a Swiss painter. Johannes Dunz s works have been put up for auction numerous times, with realized prices varying from 715.88 USD for Porträt JohannHeinrichHummel von Ber n in 2004 to 1461 USD for Porträt der Johanna von Bonstetten, geb. Manuel in 2014 , based on the size and medium of the artwork.