Constans became sole leader of the western part of the empire, while his brother Constantius II ruled the east.
Citation:
Bouchard, Elsa. "Murder of Constantine II by his brother Constans".
The Literary Encyclopedia. First published 01 March 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=11544, accessed 23 May 2013.]