Editors. "Brandenburg and Neuburg agree to partition Jülich-Cleves". The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16520, accessed 23 May 2013.]
Frederick William, Great Elector of Brandenburg, and the Duke of Neuburg sign the Treaty of Cleves, arranging the partition of Jülich-Cleves. Brandenburg is to receive Cleves, Mark and Ravensburg, while Neuburg retains Jülich and Berg.