The 10th Founding of Space Marine Chapters occurred during the mid-35th Millennium, created amid the dark times of the Nova Terra Interregnum, when the Imperium of Man had been split into twin interstellar empires. Denouncing the High Lords of Terra, the Ur-Council of Nova Terra claimed rule over the Segmentum Pacificus. This period of divided rule lasted for nine standard centuries. Few records remain surrounding this Founding, which was believed to be created to try to counteract the rapid erosion and contradiction of the Imperium's borders during this period of political and military division. The infamous Astral Claws were one such Loyalist Space Marine Chapter allegedly created during this Founding from an unknown genetic origin, although some sources differ on this. Their Chapter was specifically created to defend the Eastern Fringes of the Imperium of Man from any Chaos threats spawned by the massive Warp Rift called the Maelstrom, in the region of the Ultima Segmentum appropriately called the Maelstrom Zone by Imperial astrocartographers.
Select 10th Founding Chapters
- Imperial Armour Volume Ten - The Badab War, Part One, pp. 54-65