Ivan Winberg ( 1800 - ) is a Russian painter. Ivan Winberg s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 6671.26 USD for PORTRAIT OF CZAR NICHOLAS I OF RUSSIA (1796-1855); PORTRAIT OF EMPRESS ALEXANDRA FEODOROVNA OF RUSSIA (1798-1860) in 2004 to 15600 USD for Miniature Portrait of Czar Nicholas I of Russia in 2007 , based on t