Lords of Decay

The Lords of Decay are a warband of Chaos Space Marines who were once a Loyalist Chapter of Space Marines known as the Lances of Pteros. They were corrupted after entering the Eye of Terror in 321.M37 as part of the Imperial Abyssal Crusade. At some point during their sojourn in the Eye, the Lances of Pteros were corrupted by Nurgle and later absorbed into the Death Guard Traitor Legion. The Death Guard has grown substantially larger in this way by recruiting members from other Traitor Legions and Renegade Space Marine Chapters who are dedicated to Nurgle. The Lords of Decay appear to function as an elite force within the Legion, known to even have been led for a time by the Daemon Primarch Mortarion himself. They were heavily involved in assisting the forces of Chaos during the terrible Siege of Vraks.