A Catholic League of Halle is formed in opposition to the
predominantly Protestant Schmalkaldic League, led by Elector
Joachim I of Brandenburg and George, Duke of Saxony.
Citation:
Editors. "The Catholic League of Halle is formed".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14511, accessed 24 May 2013.]