Black Templar / BLKTEMPLAR

During Horus’s attack on the Imperial Palace, the Imperial Fists’ primarch, Rogal Dorn chose his First Captain, Sigismund, as the Emperor’s Champion, and he was given the best armour and weapons. Sigismund went forward to challenge the traitorous leaders in single combat, and triumphed over all he met in battle.

After the Horus Heresy, Roboute Guilliman, the primarch of the Ultramarines, ordered the breakdown of the Space Marine Legions into chapters. Dorn thought Guilliman a coward for not being there during the defence of Terra. Guilliman, in turn, thought Dorn a rebel for refusing to accept the dictates of the new Codex Astartes. Neither would give in. Leman Russ of the Space Wolves and Vulkan of the Salamanders both sided with Dorn, as they did not want their Legions divided, while Corax of the Raven Guard and Jaghatai Khan of the White Scars sided with Guilliman. Again, civil war threatened to split the Imperium.

The Imperial Fists were persecuted for their so-called heresies and even fired upon by the Imperial Navy. When civil war seemed all but inevitable, Dorn finally relented and agreed to split his legion. The first Successor Chapters created from the Imperial Fists were the Crimson Fists and the Black Templars.

Sigismund led the more zealous of the Imperial Fists with him to the founding of the Black Templars, and became their first High Marshal. Sigismund swore an oath that upon leaving Terra, that he and his new chapter would prove their loyalty by never resting in his duties against enemies of the Emperor. Every High Marshal after him has renewed this oath and as such, the Black Templars’ Crusade has continued for over ten thousand years, and is the longest Space Marine Crusade ever begun. Because of this unending crusade, the Black Templars have no permanent homeworld and instead live on their Crusade Fleets, using the planets they conquer to establish Chapter Keeps which are used for recruitment and staging areas.

In 998.M41, the Black Templars would briefly come to blows with the Dark Angels, after the Templars refused to hand over a prisoner that the Dark Angels suspected to be Cypher. The incident is reported to the Adeptus Terra, and Inquisitor Archibald was assigned to lead the inquiry.