TheSons of Horusis the XVIth Legion ofSpace MarinesinWarhammer 40k, was originally known as theLuna Wolves. In honour of theirPrimarchHorus' great achievements during Great Crusade, after the Ullanor triumph his father, theEmperor of Mankindsuggested that the Legion be renamed the "Sons of Horus" and the Primarch, at his brotherSanguinius' urging, did it some time later.Shortly after the Legion's renaming, Horus was corrupted by theChaos Godsand started a rebellion against his father known as the Horus Heresy. At the start of the Heresy, one third of the loyal to theImperiumSons of Horus were killed during the lstvaan III massacre, the remainder supported the Primarch in his war against the Emperor, and become theChaos Space MarinesAfter their defeat at the Battle of Terra, the Sons of Horus escaped with the other Traitor Legions into the Eye of Terror, where they fell apart to many warbands until the Legion's First CaptainEzekyle Abaddonunited most of them into theBlack Legion.The Sons of Horus woregreenorblackpower armor,spiked helmetsand their Primarch'seye symbol.