The northern provinces of the Netherlands effectively declare
independence in the Act of Abjuration, by which they renounce any
allegiance to Philip II of Spain.
Citation:
Editors. "Philip II deposed by the Dutch Estates General; this was a declaration of war".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=10209, accessed 22 May 2013.]