In Rome, Pope Clement VII is forced to surrender to the marauding
imperialist troops. He agrees to pay an enormous ransom of 400 000
ducats if his life is spared, as well as ceding to the Holy Roman
Empire the territories of Parma, Piacenza, Civitavecchia and
Modena.
Citation:
Editors. "Pope Clement VII surrenders to the imperialists".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14381, accessed 18 May 2013.]