Walther Wünnenberg ( 1818 - 1900 ) was a German painter. Walther Wünnenberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 661.98 USD for Rheinlandschaft mit Burg und Figurenstaffage in 2004 to 1664.06 USD for Middle Rhine Landscape near Trechtingshausen with the Clemens Chapel and Reichenstein Castle in 2008 , based on the siz