Alexander I ( ; 23 December [O.S. 12 December] 1777 – 1 December [O.S. 19 November] 1825), nicknamed "the Blessed", was Emperor of Russia from 1801, the first king of Congress Poland from 1815, and the grand duke of Finland from 1809 to his death in 1825. He was the eldest son of Emperor Paul I and Sophie Dorothea of Württemberg. The son of Grand Duke Paul Petrovich, later Paul... Wikipedia