A third Barrier Treaty is signed between Holland and the Empire,
also known as the Treaty of Antwerp. By this agreement, the Empire
secures the Spanish Netherlands, but the Dutch are permitted to
occupy eight fortresses against the French, including several
cities in Guelders.
Citation:
Editors. "Barrier Treaty is signed between Holland and the Empire".
The Literary Encyclopedia. First published 01 April 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=17176, accessed 24 May 2013.]