Alliance of Kloster-Severn is signed between Francis I of France, Bavaria, Saxony and Hesse, to oppose the recognition of Ferdinand as King of the Romans.
Citation:
Editors. "Francis I, Bavaria, Saxony and Hesse unite against King Ferdinand".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=9995, accessed 19 June 2013.]