Board Thread:Lore Discussion/@comment-11923066-20130126013641/@comment-1852943-20130604131646

Hmm, that is an interesting point. I don't think the game content ever explicitly states Seath is a true "Everlasting Dragon." In addition to his very unique appearance, we also know that he was mortal whereas the true dragons were "everlasting" and had "scales of immortality." Furthermore, Seath is the "grandfather of sorcery" according to the Moonlight Greatsword which is cut from his own tail, which further sets him apart from the ED. So, I would go so far as to speculate that Seath is kin to the ED but not one of them. His genetic relationship may be compared to the relationship between the Hellkite Dragon and the ED.