Excommunicate Traitoris is the stamp applied to Imperial individuals or groups, such as Space Marine Legions, Knight Houses or radical Inquisitors, that have betrayed the Imperium through heresy, mutation or any other act the Imperium deems unforgivable. Several Space Marine forces have been deemed Excommunicate, such as the Traitor Legions, the Flame Falcons, the Relictors and the Soul Drinkers. They are also known as Renegade Space Marines.
- 1: Codex: Space Marines (3rd Edition), [Needs Citation]
- 2: Soul Drinkers (Novel Series) by Ben Counter, [Needs Citation]
- 3: Dark Heresy: Ascension, [Needs Citation]
- 4: Vigilus Defiant, pg. 11