Changes

===Destruction===

*{{Main|Thirteenth Black Crusade}}

During the [[Thirteenth Black Crusade]], Cadia was subjected to the largest Chaos invasion since the [[Horus Heresy]]. An opening surprise attack by the [[Volscani Cataphracts]] wiped out the Cadian High Command, forcing [[Ursarkar E. Creed]] to become its sole Castellan.