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.