Who Betrayed the Emperor Among the Primarchs?

DIRECT ANSWER

Several Primarchs betrayed the Emperor during the Horus Heresy and joined Horus’s rebellion. These Primarchs led their legions against the Imperium. Many later became Daemon Princes serving the Chaos Gods.

QUICK FACTS

EXPLANATION

The Horus Heresy began when the Warmaster Horus turned against the Emperor after being corrupted by Chaos. Several Primarchs joined his rebellion for different reasons, including ideological differences, manipulation by Chaos, or resentment toward the Emperor. These traitor legions fought against loyalist forces in a massive galactic civil war.

WHY IT MATTERS

The betrayal of the Primarchs caused one of the most devastating conflicts in human history. The Horus Heresy reshaped the Imperium and created many of the ongoing conflicts seen in the Warhammer 40K setting.

RELATED LORE

What Is the Horus Heresy
Who Was Horus Lupercal
Which Primarchs Are Still Alive
What Happened at the Siege of Terra

FAQ

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