Ernst Richard ( 1819 - 1899 ) was a German painter. Ernst Richard s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 1949.79 USD for Grazing cows at lakeside. in 2004 to 6168 USD for The Knights of St. John of Jerusalem Before Suleyman the Magnificent in 2005 , based on the size and medium of the artwork.