Editors. "Pope Paul III denounces Charles V's attitude to the Lutheran princes". The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14704, accessed 21 May 2013.]
Pope Paul III denounces the attitude that had been taken by Holy Roman Emperor Charles V at the Diety of Speyer in February, where he had effectively ended up granting concessions to the Lutheran princes by agreeing to leave open the question of a religious settlement for Germany.