Editors. "William of Orange endorses the 'Beggars of the Sea'". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15093, accessed 18 April 2014.]
William of Orange begins issuing letters of marque to a group of rebel nobles known as the 'Beggars of the Sea', authorizing them to plunder Spanish ships.