Editors. "The Emperor refuses to agree to the Treaty of Prague". The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16130, accessed 18 April 2014.]
Holy Roman Emperor Ferdinand II refuses to accede to the terms of his precedessor's 1635 Treaty of Prague, despite the pleas of the German Calvinist princes.