He gives Lothair the kingdom he already held (Italy) and the imperial title, with all the other lands of the east, and gives Charles (the Bald) the lands of the west. Louis is left with Bavaria while Pepin II, his grandson, is left out of the inheritance.
Editors. "Louis the Pious divides the Carolingian Empire among his sons". The Literary Encyclopedia. First published 01 May 2009
[http://www.litencyc.com/php/stopics.php?rec=true&UID=6936, accessed 22 May 2013.]