Editors. "The Dutch 'Beggars of the Sea' increase their attacks on Spanish shipping". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15103, accessed 16 April 2014.]
The Dutch noblemen known as the 'Beggars of the Sea' intensify their attacks on Spanish shipping in the English Channel, cutting off the Duke of Alva's supplies to the Netherlands.