Editing Constantius III (section)

===Campaigns===
{{Main|Gothic War in Spain (416-418)}}
Constantius initiated a campaign against the Visigoths in northern Hispania in 416, blockading them in order to starve them and force their submission. Soon after, the Visigoth king, [[Wallia]], surrendered to Rome, agreeing to return [[Galla Placidia]] (the sister of Honorius, who had been captured by [[Alaric I|Alaric]] {{circa}} 412, and been forced into marriage with Athaulf, who was by this time dead), and to wage war against the [[Vandals]] and other barbarians who the Romans were still in conflict with, in exchange for food supplies.{{sfn|Lee|2013|p=115}} 
This development enabled Constantius to put an end to the [[Bagaudae Revolt|Bagaudae revolt]] in northwestern Gaul in 417.{{sfn|Thompson|1982|pp=23–37}} He then continued his campaign against various tribal groups and regained control of much of Hispania and Gaul by 420.{{sfn|Sivan|2011|p=171}}