Created as they were from the Blood Angels' gene-seed, its Battle-Brothers too carry the genetic Flaw inherited from Sanguinius, which makes them susceptible to the afflictions known as the Black Rage and the Red Thirst.
When a Battle-Brother falls to the throes of the Black Rage he is placed within the ranks of the Death Company.
The Battle-Brothers of the Sable Brotherhood are considered to be unusually dour, even for Successors of the Blood Angels.
- Devastation of Baal (ca. 999.M41) - During the Devastation of Baal, the Sable Brotherhood was among the Successor Chapters that answered Dante's call for aid in the face of Hive Fleet Leviathan's assault on Baal.
Notable Sable Brothers
- Captain Gos - Captain Gos led the Sable Brotherhood contingent that fought in the Devastation of Baal.
A slight mutation in the gene-seed of the Sable Brotherhood gives every Battle-Brother skin so pale that the underlying veins are clearly visible.
The Sable Brotherhood's Chapter colours are not listed in current Imperial records.
The Sable Brotherhood's Chapter badge is not listed in current Imperial records.
- The Devastation of Baal (Novel) by Guy Haley, Ch. 12