Demetrius

Demetrius, son of Ivan IV. of Russia, was an infant at his father's death in 1582. His uncle Boris Grodonov put him to death in order to improve his chance of succession, and in consequence a number of pretenders adopted his name, one of them actually being acknowledged as Czar for a few months in 1605. The rise of the Romanoffs in 1613 put an end to the false Demetriuses.