Editors. "Catherine de' Medici and the Duke of Alva plan eradication of Protestantism". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15043, accessed 25 May 2013.]
Queen Mother Catherine de' Medici and the Duke of Alva meet at Bayonne to discuss a plan of action to eradicate Protestantism in France.