The Triad Ferrum Morgulus was the name in High Gothic given by the ancient Mechanicum to the first three Titan Legions ever raised by the Collegia Titanica upon Mars -- the Legio Mortis, the Legio Ignatum and the Legio Tempestus.
Originally raised during the Age of Strife, long before the birth of the Imperium of Man, they were created by the Mechanicum through the application of arcane knoweledge recovered from the Age of Technology to aid its Tech-priests in retaking the surface of the Red Planet for Mankind from the Cult Mechanicus' ancient enemies -- the Cy-carnivora, maddened thinking machines and feral Human mutants.
They later served as some of the most potent Primus and Secundus-grade Legios of the Collegia Titanica and the models for all of the Titan Legions raised by other Forge Worlds settled by Mechanicum colonists across the galaxy.
The Legio Mortis and a great portion of the Legio Tempestus would serve the cause of the Warmaster Horus and the treacherous Fabricator-General Kelbor-Hal during the Horus Heresy, while the Legio Ignatum and the rump of the Legio Tempestus would remain loyal to the Emperor.
Member Legios[]
- Legio Mortis ("Death's Heads")
- Legio Ignatum ("Fire Wasps")
- Legio Tempestus ("Stormlords") / Legio Tempestor ("Thunder Raptors")
Sources[]
- Adeptus Titanicus: The Horus Heresy - Loyalist Legios (Specialty Game), pp. 18-23
- Adeptus Titanicus: The Horus Heresy - Traitor Legios (Specialty Game), pp. 18-23, 28-33
- The Horus Heresy Book One: Betrayal (Forge World Series), pp. 138–140
- The Horus Heresy Book Five: Tempest (Forge World Series), pg. 145