Editors. "The French States-General agree to support the young Duke of Guise". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15455, accessed 18 April 2014.]
The French States-General meet in the Louvre in Paris. They reject Philip II's attempt to claim the throne for his daughter, the Infanta Isabel, and agree to support the Catholic League in the form of the young Duke of Guise.