Editors. "Leopold I signs a treaty with Transylvania". The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16802, accessed 21 May 2013.]
Holy Roman Emperor Leopold I signs a treaty with Transylvania. By the terms of this agreement, the Estates of Transylvania remove themselves from Turkish suzerainty and submit to the authority of the Habsburgs, under the rule of the King of Hungary.