What if Roman emperor Constantius III had lived beyond 421 AD, and managed to be recognized as emperor of both West and East?
How much of the barbarian invasions could he stave off? Could Genseric's rise as warlord in North Africa be avoided? Would Constantius attempt to re-garrison Britain?
What happens to his wife, Galla Placidia, and his heir, Valentinian III? I'd figure that, with her husband still around, Galla wouldn't end up as the power-behind-the-throne, and Valentinian could learn how to be a better ruler.
In case Constantius, or his now more competent son, lives long enough to face Attila and the Huns, what are the effects on the coming conflict?
How much of the barbarian invasions could he stave off? Could Genseric's rise as warlord in North Africa be avoided? Would Constantius attempt to re-garrison Britain?
What happens to his wife, Galla Placidia, and his heir, Valentinian III? I'd figure that, with her husband still around, Galla wouldn't end up as the power-behind-the-throne, and Valentinian could learn how to be a better ruler.
In case Constantius, or his now more competent son, lives long enough to face Attila and the Huns, what are the effects on the coming conflict?