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"They claim we are weak, pathetic creatures, nought but lackeys destined to live and die by another's bidding. This may be true but they are no better. Their master hides behind words and notions of honour, but do not delude yourself; were He to bid them to die the result would be the same, whether they obeyed it or not."

—Fafungi "The Blackhanded", High Scion of House Morbidia, in a message to his fellow Knight Scions, 012.M31.

House Morbidia, also known as the Pact of Morbidia, was originally a house of Imperial Knights of the Questor Mechanicus in service to the Mechanicum of old and later a Chaos Knight house. House Morbidia was of ancient provenance and founded at the very beginning of the Age of Strife on holy Mars itself.

House Morbidia started its existence as one of the very first Knight houses in service of the Omnissiah's priesthood and was one of the early rivals of the legendary House Taranis and House Zavora. Yet where these houses were to rise high in the esteem of the Priesthood of Mars, House Morbidia would fall in disgrace; sparking an internecine war that would see it defeated and shackled to the will of the fabricator-general of the ancient Mechanicum.

As an independent Imperial Knight house, House Morbidia ceased to exist. In its place, as punishment for its crime, the "Pact of Morbidia" was initiated. The house would serve as a penal detachment forced to act as the fabricator-general's personal enforcers for many Terran centuries before turning to the service of the Warmaster Horus and his Traitor Legions during the Horus Heresy.

Whether the Pact of Morbidia survived the galactic civil war is unknown.

House History[]

House Morbidia Knight-Atropos

House Morbidia colours as displayed by the Cerastus Knight-Atrapos Ire of Mars.

House Morbidia originated on Mars, in the distant past when Humanity entered the Age of Strife. In its early years it established itself as one of the early rivals of such famed Knight houses as House Zavora or even the Knights of House Taranis in power and the favour of the Omnissiah's priesthood.

At first the house seems to have prospered, growing strong, as did its rivals. However, some time during these dark centuries, House Morbidia erred and committed crimes the truth of which have long been suppressed within the vast and ancient datacores of Mars. The ruling fabricator-general of the Mechanicum condemned their actions and pronounced them Excommunicate Traitoris. Thus began a series of bloody and bitter battles led by Houses Taranis and Zavora, who among others would eventually bring the defiant Scions of House Morbidia to their knees in surrender, their power broken and their house in ruins.

As the price for their survival, the house was forced to accede to the crippling demands of servitude imposed by its new overlords, not least of all total submission to the office of the fabricator-general "...until such times as the stars themselves burned cold..."

Since then, what remained of House Morbidia has formed a cadre of what could be described as slave-warriors, its Scions condemned to live and die at the will of the fabricator-general of Mars for the dim and forgotten sins of their forebears many generations before.

Though such shame would be the death of many a house, the Scions of Morbidia revelled in their new role, gaining infamy for their merciless nature and unrepentant lust for slaughter.

House Morbidia Knight-Maegera

The House Morbidia Questoris Knight Magaera Rage Manifested

Effectively House Morbidia ceased to exist as an Imperial Knight house, but being personally bound to the fabricator-general it was nevertheless equipped with Knight armours of the highest standard, having found a new purpose in the service of their master: the punishment of those who would stray too far from the doctrines of Mars. Morbidia was in fact lavished with attention by their master in a manner akin to the way one might treat a favoured pet.

On these occasions, the "Pact of Morbidia" always fought alongside the dreaded Legio Mortis, both forces instilled with the will of the fabricator-general to punish those who had erred, but was never permitted to become powerful again. On rare occasions, the ranks of the Pact were swelled by individual Scions of other oath-bound Knight houses condemned by the Consistorial Courts of Mars to serve as part of the Pact for infractions of dogma and tech-heresy.

However these sentences were seldom as severe as the one pronounced in eons past on House Morbidia, most such Knights being sentenced to serve only until their death or for a certain amount of standard years.

As the Horus Heresy dawned and the ominous fabricator-general of Mars, Kelbor-Hal, sided with the Traitors, so too did the Pact of Morbidia under his direct control.

The Legio Mortis offered House Morbidia their freedom if they would swear an oath to serve the cause of Horus. Embittered by their centuries of enslavement, the Knight house was swift to accept.

Most of its number was scattered amongst the Traitors' expeditionary fleets across the galaxy, assigned to Legio Mortis and Legio Magna detachments or dispatched to reinforce independent Dark Mechanicum battlegroups such as the Taghmata Satarael, where they fell upon the servants of the Emperor with gleeful savagery.

In this, they gained a measure of independence denied to them for millennia, for many amongst their number were finally freed from the gaze of Mars. Though their servitude remained unbroken, the horrors of war offered brief moments of freedom for the Knights of House Morbidia, allowing them to indulge in their darkest habits. In this manner did the corruption of Chaos take root within their house, slowly moulding them into little more than savage creatures.

Notable Campaigns[]

  • Battle of Beta-Garmon, "The Titandeath" (006-013.M31) - House Morbidia took part in the long and savage Beta-Garmon campaign, which included hundreds of war zones across dozens of worlds. During this conflict, House Morbidia provided Knight support to the Legio Mortis. Even before the greater armies of the Warmaster Horus reached the star cluster, the battle lines had long since been drawn, and fighting had been going on for many Terran years. It was a cauldron of battle that would consume millions of lives before its end and see the demise of entire Titan Legions, earning this campaign the dire moniker of the "Titandeath." The Beta-Garmon Cluster, also known as the gateway to the throneworld of Terra, was the last hurdle that the Warmaster Horus' forces had to overcome before they reached the Imperium's capital world. Heavily fortified by the Loyalists, Beta-Garmon would become one of the greatest and bloodiest battles of the Horus Heresy, as well as one of the longest-lasting.
  • Defence of Ryza (012.M31) - During the Horus Heresy, a great battle took place on the Legio Crucius' home Forge World known as the Defence of Ryza. Forces of the Dark Mechanicum, led by the Traitor Titan Legions and their Chaos Knight allies (including House Morbidia) fought against the Loyalist servants of the Omnissiah. Countless Titans and Knights fell on both sides. Despite achieving several notable victories against the Loyalists, including the destruction of the bastion of the Legio Crucius, the Traitor forces soon faced a new threat. The Hierophant of Ryza ordered the opening of the forge world's war vaults, giving her allies full access to the deadly, and once-forbidden, knowledge held within. When the defenders of Ryza marched out once more, they did so with weapons capable of sundering even a Titan with terrifying ease. Alongside them came a whole new force -- House Sidus, a Knight House previously unknown to the Imperium, consisting nearly exclusively of Mechanicum Knights and kept hidden away beneath Endeavour until such time as they were needed. So assembled the Loyalists went on the offensive, hoping to throw back the Traitors before they too could regroup. It was at Conveyance Terminus Nine-Omega that the two forces were to meet in great numbers, the spaceport hosting the last battle of the invasion as it had the first. The Scions of House Sidus acquitted themselves well, besting the Knights of House Morbidia atop Mount Causcaut and claiming two engine kills during the Loyalist assault upon Conveyance Terminus Nine-Omega. Eventually, the Loyalists were able to drive back the Traitors, only to be bombarded by a Chaos Warfleet from orbit. There was little to celebrate, as the guardians of Ryza tasted pyrrhic victory, and the world never recovered the prominence it had known as a true rival to Mars before the Heresy.

Notable Knights[]

  • Ire of Mars (Cerastus Knight-Atrapos) - Owing to grievances wrought against the fabricator-general during the Age of Strife, grievances since stricken from the records of the Mechanicum, House Morbidia were devoid of free will, making war at the whim of Mars during the Great Crusade. The considerable firepower offered by the weapons of a Knight Atrapos such as Ire of Mars proved ideal for penal duties against elements of the ancient Mechanicum that defied Mars. The combat experience House Morbidia gained as the personal enforcers of the fabricator-general proved immensely useful during the Horus Heresy, for they were one of the few households that had previously tested their mettle against members of both the Titan Legions and Questoris Familia before the Warmaster Horus' betrayal.
  • Rage Manifested (Questoris Knight Magaera) - House Morbidia Knights Magaera such as Rage Manifested were frequently used in urban pacification operations. Armed with devastating Lightning Cannons and Hekaton Siege Claws, banners of Knight Magaera would advance behind a screen of Cerastus Knight-Lancers. Upon reaching a fortified area of resistance, the Knights would tear gaping wounds in target structures with their siege claws before obliterating the now exposed defenders with focused beams of electrostatic energy. A favoured tactica of House Morbidia task forces that included Knights Magaera was the careful herding of retreating defenders to a handful of holdfasts, upon which the household would fall in great numbers, slaughtering any survivors in a single, decisive blow.

Notable Personnel[]

None listed in current Imperial records.

House Strength[]

The exact strength of House Morbidia remained a closely-kept secret by the fabricator-general of Mars, with estimates placing the household's strength between 170-290 operational Knight armours, rendering the Pact of Morbidia as a Secundus-grade Knight house. Despite this relatively small number, at least compared to other Knight houses drawn from the Red Planet, House Morbidia displayed a considerable number of esoteric Knight armours amongst its ranks.

Banners of Questoris Knights Magaera, Styrix and Atrapos daubed in the colours of House Morbidia were a relatively common sight serving alongside the Titans of the house's allied Legio Mortis. More standard Knight armours in service to House Morbidia benefitted as well, regularly being upgraded with the latest innovations to leave the foundries of Mars and, much later, the so-called "blessings" of the Dark Mechanicum.

House Appearance[]

House Colours[]

The colours of House Morbidia are red and gold.

House Arms[]

The arms of House Morbidia is a red skeletal hand wrapped in a manacle and a circle of chains pointing downwards on a black background.


  • Adeptus Titanicus - The Horus Heresy: Titandeath (Specialty Game), pg. 95
  • Adeptus Titanicus - The Horus Heresy: Traitor Legios (Specialty Game), pp. 34-37
  • The Horus Heresy - Book Four: Conquest (Forge World Series) by Alan Bligh, pg. 99
  • White Dwarf 30 (February 2019), "Vassal Knight Houses," pg. 130