Editors. "Joachim II, a moderate Catholic, becomes Elector of Brandenburg". The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14544, accessed 21 April 2014.]
Elector Joachim II of Brandenburg acceded to the electorate on the death of his father, Joachim I. To receive his inheritance, his father made him promise to remain a Roman Catholic. However, his youngest brother, John of Brandenburg-Neumark, becomes a Protestant, and Joachim II himself also gradually converted to the Lutheran faith, not making his allegiance explicit until 1555, for fear of provoking confrontation with Emperor Charles V.