House Gotrith - Notable Campaigns: Battle of Beta-Garmon, "The Titandeath" (006-013.M31) - House Gotrith took part in the long and savage Beta-Garmon campaign, which included hundreds of war zones across dozens of worlds. During this conflict, House Gotrith 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.Massacre of Dallanar Beta (007.M31) - When the Chaos-corrupted Warmaster Horus openly declared his betrayal of the Emperor, the entirety of House Gotrith's strength was brought to bear against the populace of their homeworld of Dallanar itself. House Gotrith turned on those who no longer respected the household, daring them to call out to the Emperor for protection.Cataclysm of Iron (010-013.M31) - The battles of the Cataclysm of Iron took place in the "Belt of Iron," a region of the Segmentum Tempestus and Segmentum Pacificus home to numerous lesser Forge Worlds. Many of these worlds declared for the Dark Mechanicum upon the outbreak of the Schism of Mars. Sporadic fighting between Loyalist and Traitor Mechanicum elements in this region erupted into full-scale war in 010.M31, pitching the Traitor Forge Worlds of Incunabula, Urdesh, Valia-Maximal, and Kalibrax against the Loyalist worlds of Graia, Arl'yeth, and Atar-Median. The worlds of Arachnus and Jerulas Station meanwhile both fell into their own civil wars. In the subsequent devastating fighting, many nearby worlds were swallowed up in the destruction.Battle of Uridoci II (874.010.M31) - During the Cataclysm of Iron, the populace of Uridoci II was reduced to less than a tenth of the number held before the beginning of the conflict, slaughtered in a mass campaign of butchery led by House Gothrith, with the household building monuments of corpses dedicated to the Warmaster Horus and daubed with ritualistic symbols. The few survivors of the world were spared a similar fate by House Moritain, who swore an oath to defend the last outposts of civilisation on the planet, engaging the warriors of House Gothrith amongst the ruined cities of Uridoci II and driving them from the world. The departure of House Gothrith was marked by the emergence of a virulent plague amongst the survivors that left 300,000 dead and forced the complete quarantine of the entire planet, condemning it to a slow death. When it was deemed that the plague had run its course, a sect of Mechanicum Genetors descended to the surface to find a world devoid of Human life, along with an extensive catalogue of names listing every individual whose life was claimed by House Gothrith and the subsequent disease, diligently  recorded by the Scions of House Moritain even as they too succumbed to illness.