House Korvax - Notable Campaigns: Charadon Campaign (Unknown Date.M42) - The fall of Kolossi began during the Charadon Campaign of the Era Indomitus, when the Daemon Prince Be'lakor used his powers to sway a number of House Raven's Sacristans to his cause who then secretly corrupted their Knight suits' Thrones Mechanicum with the power of Chaos. After this was done, Be'lakor unleashed the daemonic legions and Heretic Astartes warbands under his command as the Disciples of Be'lakor upon House Raven's Knight World of Kolossi while the Questor Mechanicus house prepared to defend their world. Most of its Knights, however, were already fighting elsewhere in the Charadon Sector, under the command of their Princeps Grevan Raven, leaving the few left on Kolossi heavily outnumbered. These valiant Nobles were led by the Knight Seneschal Havlorn, and he had the remaining House Raven Knights protect their primary fortress, the Keep Inviolate, which was being used as a refuge for Kolossi's population from the daemonic assault. The Daemons and Chaos Space Marines eventually reached the fortress, but as Havlorn was preparing his Knights to defend it, disaster struck. The Nobles who sat upon the Thrones Mechanicum that had been corrupted by the Traitor Sacristans were suddenly transformed into Chaos Knights under the command of Be'lakor. These corrupted Traitor Knights then fired upon their still-loyal allies and Seneschal Havlorn was among the first to be slain. Many of House Raven's remaining Loyalist Knights on the world died soon afterwards and the few remaining survivors were forced to escape offworld. This brought an end to any significant resistance and Kolossi fell to the forces of Be'lakor. However, a distress call had been sent out before House Raven's collapse and it was answered by Battle Group Tarsus of the Indomitus Crusade's Fleet Primus. As the battle group made its way to Kolossi, they sent a vanguard force ahead of them to undertake a reconaissance-in-force of the Knight World. This fleet neared Kolossi even as Seneschal Havlorn and House Raven's remaining Loyalist Knights were being slain by the Traitors. When the Imperial vanguard reached Kolossi they were suddenly attacked by the Disciples of Be'lakor, who had seen the vanguard fleet approach the Fallen Knight World. During the battle that ensued, the vanguard of Battle Group Tarsus dispatched an Adepta Sororitas strike force to Kolossi, but the corrupted House Raven Knights counter-attacked. Though the vanguard fleet and Sisters of Battle strike force were both quickly overwhelmed, Be'lakor knew that that the full might of Battle Group Tarsus would soon arrive. Rather than risk losing his newly-won prize, the Daemon Prince enacted a sorcerous ritual to transport the entire world through the Immaterium to a new location deep within the Imperium Nihilus, where he soon transformed its surface into a realm of shadows more to his liking, renaming the planet Korvosi and its Chaos Knights House Korvax. Korvax's nightmarishly deformed Chaos Knights are now among the most powerful of Be'lakor's servants who stand with the forces of Daemons, Heretic Astartes and Traitoris Militarum that also defend the Dark Master's new realm.