Astartes Praeses
The Astartes Praeses were founded as a group of Space Marine Chapters tasked with guarding the borders of the Eye of Terror. It is a difficult and unforgiving task; the chapters are constantly beset by the Traitor Legions and even the occasional Black Crusade. Originally numbering twenty Chapters, eighteen now remain because one went traitor and the other was destroyed.
The full membership of the Praeses is unknown, but the following Chapters have been confirmed as being part of the Praeses:
- Angels Eradicant
- Black Consuls and their counterpart, the White Consuls
- Brothers Penditent
- Crimson Scythes
- Excoriators
- Iron Talons
- Knights Unyielding
- Marines Exemplar
- Night Watch
- Subjugators
- Viper Legion
The Fire Claws are the Chapter that went rogue (kinda its in the radical inquisitors sense) and renamed themselves to the Relictors.
The Ultramarines Honour Company can be numbered amongst them, though it is not actually a Chapter, but it is tasked with the same purpose as the Astartes Praeses: to guard the Eye of Terror.