Adolf Karel Maximilian Engel ( 1801 - 1833 ) was a Belgian painter. Adolf Karel Maximilian Engel s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 105.43 USD for Napoleon als Kaiser zu Pferde - Napoléon Le Grand in 2005 to 2146.63 USD for Hügelige Landschaft mit Hirte, zwei Kühen und Stier in 2006 , based on the size and medium