The Sons of the Raven was a Codex Astartes-compliant Loyalist Space Marine Chapter of unknown Founding and origin. Based on their Chapter name, they are highly suspected of being a rare Successor Chapter of the venerable First Founding Raven Guard Chapter. Almost nothing is known about this Chapter in the Imperial records other than their participation in the campaign against the Forces of Chaos and the Hell-Forge of Sarum, where the Sons of the Raven were utterly annihilated in 416.M37.
- The Martyred Sons (416.M37) - Inquisitor-Lord Antonius Coil of the Ordo Malleus discovered the current location of the nomadic Hell-Forge of Sarum while conducting an Exterminatus against the warp-tainted Hive Worlds of Goleonda IX, and moved to see it destroyed at last. Along with warship committed from Battlefleet Reductus and several Militarum Tempestus regiments, he mobilised the aid of three Space Marine Chapters, the Sons of the Raven, Celestial Guard and the Brazen Claws, to strike deep into the perilous Golgotha Wastes against this nightmarish thorn in the Imperium's side. Within sight of the baleful world, the Imperial fleet was ambushed on all sides by the pale warships of the Warp Ghosts and corrupted Black Wings Chaos Space Marines and the horrific daemon-engines of their Dark Mechanicus allies of Sarum. In the brutal seventeen hour void battle which followed, the Imperial fleet was encircled and slowly torn to pieces both from without and from within as Daemons ripped open passages into realspace deep onboard the stalwart vessels. Only the Chapter fleet of the Brazen Claws broke free from the trap without crippling losses, while the human contingent of the Imperium's strike forces was annihilated to the last. The ravaged Celestial Guard Chapter would take nearly a century to rebuild from its grievous losses from its stores of gene-seed, swearing bitter vengeance against the Warp Ghosts. The fleet-based Sons of the Raven Chapter, not one of whom escaped the deadly trap, were declared martyred and the great Bell of Lost Souls in the Tower of Heroes on Terra tolled to mourn their passing. Eighteen standard years later, a corrupted Warspite-class Battle-Barge, believed once to have been the Seraphina Carricus of the Sons of the Raven Chapter, was encountered transporting a Warp Ghosts raiding force off Mezoa XV, the withered face of Jo'sun Hernezu the martyred Chapter's last master worn by its revenant captain.
The Sons of the Raven's Chapter colours are not listed in current Imperial records.
The Sons of the Raven's Chapter badge is not listed in current Imperial records.
- Imperial Armour Volume Thirteen - War Machines of the Lost & The Damned, pg. 22