User blog comment:IamJakuhoRaikoben/Chapter 444: Emperor Spriggan, Review./@comment-24784846-20150713055242/@comment-24800928-20150713161925

I was about to agree with Nick but I remember the guy saying how the emeperor never seems to age. So it makes me feel like he has been ruling for a long time. Since he wasnt able to control his powers, he probably fled to Tenrou. Now that he is able to control them he is back. I suppose no one tried to overthrow him because Albereth is a very prosperous nation and Zeref is a dangerously strong ruler.