pretty sure that's clauses brother. The evil blonde guy (Jeanatte's father).
Aeternitas was one of the previoud Emperors. You might remember Lucas cussing out that small prince because he lacked magic, saying he would never teach something like that.
Anastacius is Claudes older brother.
He's the older generation emperor. At first, Lucas don't want to teach him because he looked weak but then, he became the most powerful emperor in history
So do you think that Aternitas may be inside claudus brother, I dont know if you remember a part when he was a child and was looking somewhere like he was hunted from something. Anastatius loved Claude when they were kids i dont know why he became evil but i think that may be the reason
Or perhaps he went inside Anastacius after Claude killed him
I do think Aeternitas is in Anastacius body. Back then I thought a demon possesed Anastacius which resulted in his aggressions and him hating Claude.
Now I rhink Aeternitas was "seducing" Anastacius ever since he was young, having a huge influence on him and when Claude killed him Aeternitas took over his body conpletly.
Who the hell is Aternitas?