Robert Theer ( 1808 - 1863 ) was an Austrian painter. Robert Theer s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 692.4 USD for Francis II (1768-1835), Holy Roman Emperor 1792-1806 and Emperor of Austria 1806-1835 in 2005 to 4949.74 USD for Portrait d'un dignitaire turc en pied in 2012 , based on the size and medium of the artw