Woldemar Hau ( 1816 - 1895 ) was a Russian painter. Woldemar Hau s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 8638.56 USD for Siblings in 2011 to 21321.96 USD for Graf Alexander Feodorovich Orloff Comte Alexandre Feodorovich Orloff in 2012 , based on the size and medium of the artwork.