The Brazen Skulls was a Loyalist Space Marine Chapter of unknown Founding and genetic origin. Its only notable engagement was when it took part in the Sabbat Worlds Crusade against the forces of Chaos in support of the reincarnated Saint Sabbat. The Brazen Skulls were eventually wiped out as a Chapter in the Sabbat Worlds by 773.M41. Despite the extinction of the Chapter during that crusade, their name, colours and heraldry were reinstated during the Ultima Founding, and thus all of their number are now Primaris Space Marines. The Brazen Skulls are determined to live up to the honour of their lost forebears and have swiftly earned a reputation for heroism, tenacity and all-consuming hatred for the forces of Chaos.