Johannes Mogk ( 1868 - 1921 ) was a German painter. Johannes Mogk s works have been auctioned off multiple times, with realized prices varying according to the size and medium of the artwork, for instance of 240.48 USD for Der Sohn des Künstlers Heino als Knabe mit blonden Locken, in rotem Kleid an einen Stuhl gelehnt in 2007