Woldemar Hau, German, 1816 to 1895, lithograph print depicting a portrait of Grand Duchess Olga Nikolaevna of Russia, 1822 to 1892, a member of the Russian imperial family who by marriage to Charles I of Wurttemberg became Queen consort of the Kingdom of Wurttemberg until Charles death. She was the second daughter of Nicholas I of Russia and Charlotte of Prussia. Signed Hau lower left. Circa the second quarter of the 19th century. Woldemar Hau, aka Vladimir Ivanovich Hau, was a portrait painter who worked in the Biedermeier style. Among his most famous works are his portraits of Tsar Nicholas I and Tsarina Alexandra Fyodorovna. He eventually painted all the members of the Royal Family as well as many familiar figures in Russian and Baltic German society, such as Ferdinand Johann Wiedemann and Natalia Pushkina. Antique Russian Print Collectibles.