Alpharius Omegon is the collective name for the twin primarchs of the Alpha Legion, the XX Legion. They’re the most mysterious of the Emperor’s sons, a pair who claimed to be one soul in two bodies, and whose records are so tangled in lies that even their deaths are disputed.
Who they are
Alpharius and Omegon are two primarchs, not one. They were created by the Emperor in the late 30th millennium, just after the Age of Strife, and they call themselves one soul in two bodies. Their Legion, the Alpha Legion, treats them as a single will with many heads.
Their origins are deliberately murky. Alpharius is said to have been found on Terra, while Omegon’s homeworld is unknown. The Alpha Legion often claims to be the last Legion found, but some accounts suggest they were actually the first. Alpharius himself has said that even this is a lie.
The Alpha Legion’s way of war
The twins built a Legion around secrecy and deception. Alpha Legionaries are known for infiltrating other forces, impersonating their officers, and seeding false information. There are reports that Marines took on the name and identity of Alpharius during wars and even at council meetings with other Legions.
This makes any record of the primarchs unreliable. Physical descriptions vary wildly, and some sources claim Alpharius could duplicate himself. The Legion’s motto is that they take the long view, and their plans often unfold over decades or centuries.
Loyalty and the Heresy
During the Horus Heresy, the Alpha Legion sided with the traitors, but their motives remain unclear. They’ve always been willing to sacrifice their own for a greater goal, and Omegon once spoke of the Legion as a union of the like-minded that wouldn’t tolerate treachery.
Some fans argue they were secretly loyalists working against Chaos from within. Others think they simply followed their own agenda. The lore rarely gives a straight answer, and that ambiguity is the point.
Death and later claims
Alpharius is said to have been killed by Rogal Dorn on Pluto in 010.M31, early in the Heresy. Omegon is claimed to have died later on Eskrador, killed by Roboute Guilliman. Both deaths are marked as claimed rather than confirmed, and there are many subsequent reports of their deaths.
Because the Alpha Legion uses body doubles and identity theft, nobody can be sure either twin truly died. The Legion continues to operate in the 41st millennium, and stories of Alpharius or Omegon resurfacing never really stop.
Key facts
- Alpharius Omegon are twin primarchs of the XX Legion, the Alpha Legion.
- They were created by the Emperor in the late 30th millennium, after the Age of Strife.
- Alpharius is said to have been found on Terra; Omegon’s homeworld is unknown.
- Alpharius was reportedly killed by Rogal Dorn on Pluto in 010.M31.
- Omegon was reportedly killed by Roboute Guilliman on Eskrador, but both deaths are unconfirmed.
- The Alpha Legion is known for infiltration, identity theft, and taking the long view.
FAQ
Are Alpharius and Omegon the same person?
No, they’re twin primarchs. They describe themselves as one soul in two bodies, but they’re distinct individuals who share command of the Alpha Legion.
How did Alpharius die?
He was reportedly killed by Rogal Dorn on Pluto in 010.M31. The sources call it a claim rather than a fact, so it’s not certain.
Was the Alpha Legion loyalist or traitor?
They fought on the traitor side during the Horus Heresy, but their true allegiance is deliberately ambiguous. Some lore hints they may have had their own secret agenda.