Comprehensive Biography of Otto Eduard Leopold, Prince of Bismarck, Duke of Lauenburg, Count of Bismarck-Schonhausen, born Otto Eduard Leopold of Bismarck-Schonhausen (1815-1898), a Prussian and German statesman of the 19th century, born to a wealthy family. As Minister-President of Prussia from 1862 to 1890, he engineered the Unification of Germany. First published in 1899.