Archbishop Gebhard of Cologne, who has converted to Calvinism but
is trying to retain his position and establish parity for Catholics
and Calvinists in the diocese, is deposed by Pope Gregory XIII, who
appoints Ernest of Bavaria as his successor.
Citation:
Editors. "Pope Gregory XIII deposes Archbishop Gebhard of Cologne".
The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=15284, accessed 22 May 2013.]