In opposition to the Protestant Union formed in May 1608, the
Catholic princes of Germany meet at Munich to form a League of
their own under the leadership of Maximilian, Duke of Bavaria.
Citation:
Editors. "A Catholic League of German princes is formed at Munich".
The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15667, accessed 22 May 2013.]