The Brotherhood of Blood is a Renegade warband of Chaos Space Marines of unknown origins and Founding. They are known to have laid claim to the contested world of Brigannion Four, which lies just outside the Eye of Terror, close to the stable warp route known as the Cadian Gate. They are thought to serve Chaos Undivided.
The Brotherhood of Blood is most widely known for its claim of the contested world of Brigannion Four. This world is an unimaginably vast fortress of corrupt magic and machine, made all the more impregnable by its current ruler, Manneus Drath of the Iron Warriors Traitor Legion.
The Brotherhood of Blood constantly vies with some of the original Traitor Legions who have also laid claim to this contested world, including the Night Lords, Death Guard and the Black Legion, as well as another warband, the Sons of Hate.
The Brotherhood of Blood's colours are not listed in current Imperial records.
The Brotherhood of Blood's badge is not listed in current Imperial records.
- Codex: Chaos Space Marines (4th Edition), pg. 23