List of Space Marine Chapters - H: NameOriginFoundingNotesHalo BrethrenUnknownUnknownThe Halo Brethren is a Loyalist Codex Astartes-compliant Space Marine Chapter of unknown Founding and origin. It served in the campaign against the rebellious Grand Master of Assassins Drakan Vangorich of the Officio Assassinorum.Halo DragonsUnknownUnknownThe Halo Dragons is a Loyalist Space Marine Chapter of unknown origin and Founding which played an instrumental role in containing the Tau's Third Sphere Expansion during the Zeist Campaign of 999.M41.Hammers of DhrexUnknownUnknownThe Hammers of Dhrex is a Loyalist Space Marine Chapter of unknown Founding and origin.Hammers of DornImperial FistsUnknownThe Hammers of Dorn is a Codex Astartes-compliant Space Marine Chapter, raised from the gene-seed of Rogal Dorn as a Successor Chapter of the Imperial Fists during an unknown Founding. It is a stringent adherent of the Codex, fostering a great rivalry with the Ultramarines and their Successor Chapters whenever those battle-brothers do not match their own militant standards.Hammers of RetributionUnknownUnknownThe Hammers of Retribution is a Loyalist Space Marine Chapter of unknown Founding and origin.HarbingersUnknownUnknownThe Harbingers is a Loyalist Codex Astartes-compliant Space Marine Chapter of unknown Founding and orign.Hawk LordsUltramarinesUnknownThe Hawk Lords is a Codex Astartes-compliant Loyalist Chapter of Space Marines and a Successor Chapter of the vaunted Ultramarines raised during an unknown Founding. The Hawk Lords heavily favour the use of their various gunships, and so are unsurprisingly the undisputed masters of aerial combat amongst the Adeptus Astartes. So skilled are they in the use of such tactics that the Astartes pilots of other Loyalist Chapters have been known to spend time as pilots in one of the Hawk Lords' Talon Wings to gain the aeronautical skills displayed by the Hawk Lords.Helion LegionUltramarinesUnknownThe Helion Legion is a Loyalist Space Marine Chapter of Ultramarines lineage created during an unknown Founding. Raised as it was from the vaunted lineage of Roboute Guilliman, the Helion Legion was founded to provide guardians for the furthest-flung Imperial worlds at the very edge of the galaxy.Heralds of UltramarUltramarinesUnknownThe Heralds of Ultramar is a Codex Astartes-compliant Chapter derived from the Ultramarines gene-seed. Its exact Founding date is unknown.Heralds of VengeanceUnknownUnknownThe Heralds of Vengeance is a Loyalist Space Marine Chapter of unknown Founding and origin.Honoured SonsUnknownUnknownThe Honoured Sons is a Codex Astartes-compliant Loyalist Space Marine Chapter of unknown Founding and origin.HospitallersImperial Fists24th FoundingThe Hospitallers is a relatively young Successor Chapter of the Imperial Fists, raised during the 24th Founding a little over two Terran millennia ago. The Hospitallers is a fleet-based Chapter that famously rejected the teachings of the Codex Astartes by which most of its brethren among the Adeptus Astartes abide. The Hospitallers is also one of the few Chapters to recognise the Imperial Cult's teachings that the Emperor of Mankind is a god.Hounds of DemosUnknownUnknownThe Hounds of Demos is a Loyalist Space Marine Chapter of unknown Founding and origin.Howling GriffonsUltramarinesUnknownThe Howling Griffons is a Loyalist Space Marine Chapter founded in M33 from the gene-seed of the Ultramarines. It fought in the Badab War and saw extensive action in the 13th Black Crusade, fighting against Chaos Plague Marines in the defence of the world of Amistel Majoris. The Howling Griffons take a special pride in their oaths, seeing each as the promise of an unending effort until the deed sworn in the oath is accomplished or the oathtaker has been slain in the trying.