Hispania, once the source of soldiers, judges, generals, and Emperors was invaded by the Alans, Suvei, Vandals, and Visigoths in the early 5th century and much like most of Western was overrun by Germanics. I wonder if this could be avoided.
The most significant POD for the migration was of course in 403 when Gerontoius revolted against Constantine III and fought against his son Constans leaving the Pyrenees open for the Germanics to spill en masse. Constantine III was preparing to send troops to Hispania to repel the Germanics entry when Gerontoius revolted. If he remains loyal then perhaps the Visigoths, Suvei, and Vandals are decimated in the mountains between the Romans and Franks.
The most significant POD for the migration was of course in 403 when Gerontoius revolted against Constantine III and fought against his son Constans leaving the Pyrenees open for the Germanics to spill en masse. Constantine III was preparing to send troops to Hispania to repel the Germanics entry when Gerontoius revolted. If he remains loyal then perhaps the Visigoths, Suvei, and Vandals are decimated in the mountains between the Romans and Franks.