Prussia and the Holy Roman Empire sign the Treaty of Wusterhausen.
By the terms of this agreement, Prussia leaves the alliance of
Herrenhausen (of the previous August), and guarantees the Pragmatic
Sanction. Frederick William undertakes to aid Austria in war by
providing 10 000 troops, while Emperor Charles VI gives vague
assurance about the succession in Jülich, Berg and Ravenstein.
Citation:
Editors. "Treaty of Wusterhausen between Prussia and the Empire".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17306, accessed 19 June 2013.]