His own Legion loved him so much, when he was knocked unconscious from psychic feedback of a mass execution of psykers, that it changed the gene-seed and caused the Black Rage mutation in Blood Angels
Lion ofcourse, Primarch of the First Legion, leader of The Order, Slayer of the Beast of Caliban and (my personal favourite) the guy who one-shoted Leman Russ. Hail the Lion!