Editors. "Treaty of Ulm with France and Sweden". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16276, accessed 23 April 2014.]
France and Sweden sign the Treaty of Ulm. By the terms of this agreement, the Elector of Bavaria and his brother, the Elector of Cologne, promise to remain neutral until the end of the Thirty Years War.