In the wake of suspicions held against him by Emperor Ferdinand II,
imperial military commander Wallenstein now demands all his
lieutenants to sign a declaration of loyalty to him.
Citation:
Editors. "Wallenstein requires lieutenants to sign a declaration of loyalty".
The Literary Encyclopedia. First published 01 February 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=16074, accessed 21 May 2013.]