William the Silent, Prince of Orange, and an army of German
mercenaries inflicts defeat on a Spanish force under Count Aremberg
at the Battle of Heiligerlee. This marks the beginning of the
Revolt of the Netherlands, which eventually led to the
establishment of the independent Dutch Republic in 1581.
Citation:
Editors. "William of Orange's defeat of the Spanish sparks the Dutch Revolt".
The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15074, accessed 22 May 2013.]