However , in June 1849 Tsar Nicholas I of Russia responded to an appeal from Emperor Franz Joseph to send Russian troops into Transylvania .
Within four months , Bem had ousted the Austrians from Transylvania .
In June 1849 Tsar Nicholas I of Russia responded to an appeal from Emperor Franz Joseph to send Russian troops into Transylvania .
Within four months , Bem had ousted the Austrians from Transylvania .