The Angels Rampant are a successor chapter of the Blood Angels. They are known to have been founded during the Dark Founding, or 13th Founding. The Angels Rampant are also known to suffer greatly from the twin curses that have plagued the Blood Angels and their successors for millenia; the Red Thirst and Black Rage. The Angels Rampant suffer much more from these curses than their cousins, why this is isn't entirely clear, though it has led to a large distrust from the rest of the Imperium towards the Angels.