Primarch · Legion III · traitor

Fulgrim

Fulgrim, “the Phoenician”, primarch of the Emperor’s Children, had fallen to Slaanesh even before the Heresy, through the daemonic blade of the Laer. On Isstvan V he beheaded his own brother Ferrus Manus, and then ascended to become a daemon prince of Slaanesh during the Angel Exterminatus affair, deceiving Perturabo. By the end of the Heresy he is a creature of Slaanesh in the Eye of Terror.

Role: Primarch
Legion: III Emperor’s Children
Side: Traitor
Key events: 3 events

Fate

A four-armed, serpentine creature — a daemon prince of Slaanesh in the Eye of Terror (the daemon world of Callax). His poisoned blade later struck down Guilliman at Thessala (121.M31).

Key events

Drop Site Massacre on Isstvan V 006.M31 · Atrocity
Battle of Iydris · Angel Exterminatus 007.M31 · Traitor victory
The Siege of Terra 014.M31 · Pyrrhic loyalist victory

Part in other events

The Cheraut Incident · Curze assaults Dorn 999.M30 · Atrocity
Cleansing of Laeran 001.M31 · Atrocity
Isstvan III Atrocity 005.M31 · Pyrrhic traitor victory
Assassination Attempt at Hydra Cordatus 009.M31 · Inconclusive
Battle of the Saturnine Gate 014.M31 · Loyalist victory

Duels

Fulgrim against Ferrus Manus (Isstvan V) 006.M31

Relations

Fulgrim — Ferrus Manuskilling
Brothers of the Forge. The closest of friends among the primarchs, bound by craft and pride. On Isstvan V Fulgrim (already under the Laer blade) beheads Ferrus — the first death of a primarch in the Heresy and the point of no return for the III and X Legions.
Event: Drop Site Massacre on Isstvan V · 006.M31 · Atrocity
Fulgrim — Horus Lupercalalliance
The Phoenix at the Warmaster’s Side. Fulgrim is one of the first primarchs whom Horus sways in person. The III Legion lends Isstvan brilliance and horror, but by the Siege the Emperor’s Children are hardly an army any more. The alliance rests on Fulgrim’s vanity and Horus’s calculation.
Event: Isstvan III Atrocity · 005.M31 · Pyrrhic traitor victory
Perturabo — Fulgrimbetrayal
The Stolen Ascension. On Iydris Fulgrim by deceit drains Perturabo’s life force in order to become a daemon prince of Slaanesh. Perturabo does not forgive: this is one of the reasons why the Lord of Iron later abandons the Siege — he does not fight for his brothers’ gods.
Event: Battle of Iydris · Angel Exterminatus · 007.M31 · Traitor victory

Sources

WH40k Fandom: Fulgrim
Angel Exterminatus (G. McNeill)

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