Editors. "Protestants in the Netherlands protest against new Catholic bishoprics". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14982, accessed 21 May 2013.]
Margaret of Parma, Regent of the Netherlands, calls for Spanish troops to help maintain order. The establishment of new Catholic bishoprics in Holland and Zeeland has incited Protestants to violent protest.