Grand Duke Michael “Misha" Alexandrovich - in reality the last Tsar of Russia by a few hours. He became such upon the abdication of his brother, Tsar Nicholas II on 15 March [O.S. 2 March] 1917 - who also abdicated on behalf of his sickly son Alexei. Michael was a Tsar from the moment of his brothers abdication until his own. He was murdered by the Bolsheviks on June 13, 1918 (aged 39).