In the Treaty of Bordesholm, Christian II of Denmark agrees to
resign his claim to Schleswig-Holstein, granting it instead to his
uncle Frederick.
Citation:
Editors. "Treaty of Bordesholm has Christian II abandon claim to Schleswig-Holstein".
The Literary Encyclopedia. First published 01 November 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=14299, accessed 26 May 2013.]