Editors. "Ferdinand of Bohemia defeats John Zápolya at Tokay". The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14384, accessed 19 May 2013.]
Ferdinand of Bohemia and Austria, rival claimant to the Hungarian throne, defeats King John Zápolya of Hungary in a battle at Tokay, and uses this victory to take over most of Hungary. In response, Zápolya appeals to the Ottoman Turks for assistance.