Aleksander Mroczkowski ( 1850 - 1927 ) was a Polish painter. Aleksander Mroczkowski s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 3194.28 USD for Czarny Staw in 2005 to 8903.47 USD for Czarny Staw in 2008 , based on the size and medium of the artwork.