Britain, France and Prussia sign the Treaty of Herrenhausen (or
Hanover). This guarantees Prussia's claim to Jülich-Berg and is
designed to counteract the Spanish alliance with the Emperor.
Citation:
Editors. "Treaty of Herrenhausen (or Hanover) between Britain, France and Prussia".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17297, accessed 21 May 2013.]