Horus Heresy · atlas

001.M31 · Eve of the Storm

Council of Nikaea

Place: Nikaea · Segmentum Solar

Fig. 1 · Place on the map

Inconclusive The Edict of Nikaea: the Librarius of every Legion disbanded, sorcery forbidden.

The Emperor convened a great council on Nikaea to judge whether psychic powers were a boon or a blight. Magnus the Red passionately defended the right to knowledge of the warp, but lost: the Edict of Nikaea disbanded the Librarius of every Legion, forbade sorcery to the primarchs and established the rank of Chaplain. Magnus nursed a grudge that would foreordain the tragedy of Prospero.

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Sides

Imperium

Special forces

Commanders

Opponents

Legions

Commanders

Type
Chronicle
Scale
4 of 5
Casualties
Not reconciled by the sources.

Significance

The legal root of the destruction of the Thousand Sons and of the schism over psykers in the Legions.

Sources

  1. Lexicanum: Council of Nikaea
  2. WH40k Fandom: Council of Nikaea
  3. A Thousand Sons (G. McNeill)

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