|Colour Scheme||House Info||Symbol|
|Knight World:||Damaetus III/II|
Hailing from the Knight World of Damaetus III/II at Felweather Keep, it is one of the most ancient Knight Houses of Segmentum Obscurus. Settling their world during the Dark Age of Technology, during the Age of Strife the Knights of Damaetus III/II stood resolute against countless xenos invasions, most notably against the Mitu. Eventually the Dark Angels arrived, having vanquished the Mitu. Grateful, they joined the Imperium and the Great Crusade.
Fighting with distinction and bravery during the Great Crusade, the House under Grand Master Jahk refused to become vassals to any specific Forge World, even when they pledged to upgrade their impoverished world. Eventually however Jahk realized the survival of his House depended on greater patronage, and swore service to the Forge World of Cyclothrathe. However with the Horus Heresy secretly underway, Cyclothrathe (having since betrayed the Emperor), attempted a surprise attack on Felweather Keep in the guise of a bonding ceremony. Only through the efforts of Jahk's son Gios did the house survive the betrayal. Jahk was killed during the battle however, and it fell to Gios to lead the House during the Horus Heresy on the side of the Imperium. Their most notable action was taking part in the Battle of the Coronid Deeps.