Lugft Huron

Lugft Huron as the Chapter Master of the Astral Claws, before he got his heresy on...

...And here in full heresy

Lugft Huron (pronounce Lüg-ft Hú-ron) (a name which remains unpronounceable to this day) was the Chapter Master of the Astral Claws Space Marine Chapter, and later the Pirate Lord of the Red Corsairs. He is also known as the "Blood Reaver". He led the Astral Claws in the defense of the perimeter of the Maelstrom warp storm, but when rebellion festered in the systems he was defending, he decided to take control and put his Marines in charge of things. Thus, the Astral Claws became the rulers of the Badab Sector, with Huron himself as the Tyrant of Badab.

While he succeeded in maintaining order (grimdark though his methods were), his requests to the High Lords of Terra for increased resources to consolidate his gains were denied, and so he decided that, in the absence of help from the Imperium, he would secede and run things his own way. He refused to hand his gene-seed tithes to the Adeptus Mechanicus, and he blocked trade to and from his Sector in order to keep the gathered resources for his military. Eventually, he attracted the attention of the Inquisition, and when he blew them off, they decided that they needed to remind him who answered to whom. Thus, the Badab War was launched.

In the end, Huron's rebellion was crushed by the forces of the Imperium, as something like a dozen Space Marine Chapters responded. Of course, Huron wasn't just a rebel, he turned out to be a heretic. In the final battle on Badab Primaris, Huron was horribly injured by a melta-blast from a dying Zhrukal Androcles while trying to escape his palace. Losing heart, the Astral Claws fled with their fallen Chapter Master. Lord Apothecary Garreon, Apothecary Secundus Variel, and Master of the Forge Armanneus Valthex (guys who had earned the charming nicknames of "the Corpse Master", the Flayer", and "the Alchemancer", respectively) set to work trying to save the life of Huron and succeeded, after making him, functionally, Chaos' answer to this motherfucker. However, they had a little help. While comatose, Huron was visited by the Chaos Gods, who offered him the power he craved and vengeance against the Imperium which rejected him. Huron agreed, and with his remaining forces fled to the Maelstrom. He is now known as Huron Blackheart, and those forces remaining under his command call themselves Red Corsairs. Over the following years Huron would go on to gain control of a significant portion of the maelstorm (the little brother of the Eye of Terror) with his vast pirate fleet, made of Space marines who turn traitor and many other human and alien reavers . By the end of M41, Huron is the second most powerful Chaos Lord in the galaxy after Abaddon himself (a fact that annoys Abby to no end, least of all because Huron has not been subtle in hiding his ambition to take Abbadon's place as Warmaster).