Skip to content Skip to footer

Who Were the Traitor Legions?

The traitor legions were the Space Marine Legions that joined Horus during the Horus Heresy and rebelled against the Emperor. These legions eventually became Chaos Space Marine forces aligned with the Chaos Gods.

QUICK FACTS

LegionPrimarch
Sons of HorusHorus Lupercal
World EatersAngron
Death GuardMortarion
Thousand SonsMagnus the Red
Emperor’s ChildrenFulgrim
Iron WarriorsPerturabo
Word BearersLorgar
Night LordsKonrad Curze

EXPLANATION

When Horus turned against the Emperor, several Primarchs followed him into rebellion. Their legions fought against loyalist forces across the galaxy during the Horus Heresy. After the war, many of these legions fled into the Eye of Terror and became Chaos Space Marines.

WHY IT MATTERS

The traitor legions remain major enemies of the Imperium. Their continued existence ensures that the legacy of the Horus Heresy still shapes galactic warfare.

RELATED LORE

What Is the Horus Heresy
Who Betrayed the Emperor Among the Primarchs
Who Is Horus Lupercal
Who Are the Chaos Space Marines

FAQ

How many legions betrayed the Emperor?

Nine Space Marine legions ultimately joined the rebellion.

Where are the traitor legions now?

Many operate from the Eye of Terror and other Chaos-controlled regions.

author avatar
Baron Von Vault Founder & Gaming Systems Analyst
Baron Von Vault is the founder of the Von Vault Network and creator of D4Dead, BorderlandsHQ, and 40KFAQ. He publishes research-driven analysis of action RPG and looter shooter systems, focusing on progression loops, class mechanics, and endgame design.
Related Articles
0 Comments

There are no comments yet

Leave a comment

Your email address will not be published. Required fields are marked *