Editors. "The Second False Dmitri defeats Tsar Shuisky". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15661, accessed 21 December 2013.]
A second False Dmitri, claiming to be the son of Ivan IV, defeats Tsar Shuisky and advances towards Moscow. The Tsar pleads for aid from Sweden, promising in return to cede the territory of Karelia.