Franz Kopallik ( 1860 - 1931 ) was an Austrian painter. Franz Kopallik s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 213.59 USD for A sketchbook or so-called Vademecum in 2004 to 18867.31 USD for ST ISAAC'S CATHEDRAL in 2015 , based on the size and medium of the artwork.