He thwarted the efforts of Alaric to seize lands in Italy by his victories at Pollentia and Verona in 402-3 and forced him to return to Illyricum, but was criticized for having withdrawn the imperial forces from Britain and Gaul to employ against the Goths.
The amir Abul-afar became a Roman vassal, and, like Alaric of old, became magister militum in the Roman army.
Euphemius, a puppet emperor, was led about by his Saracen allies much as earlier puppet emperors had been led about by Alaric and Ataulf, till he was slain in one of the many sieges.
The Theodosian Code and the Breviary of Alaric alike seem to imply a continuance of the municipal system which had been established by the Romans; nor does the later Lex Visigothorum, though avowedly designed in some points to supersede the Roman law, appear to have contemplated any marked interference with the former fora, which were still to a large extent left to be regulated in the administration of justice by unwritten, immemorial, local custom.
For some mysterious reason, probably connected with the increasing estrangement between the two sections of the empire, the ministers of Arcadius conferred upon Alaric the government of some part - it can hardly have been the whole - of the important prefecture of Illyricum.
In the shifting of offices which took place at the beginning of the new reigns, Alaric apparently hoped that he would receive one of the great war ministries of the empire, and thus instead of being a mere commander of irregulars would have under his orders a large part of the imperial legions.
His work being done, his fated task, and Alaric having penetrated to the city, nothing remained for him but to die.
However this may be - for our information at this point of the story is miserably meagre - on the 24th of August Oro Alaric and his Goths burst in by the Salarian gate on the north-east of the city, and she who was of late the mistress of the world lay at the feet of the barbarians.
Aire (Atura, Vicus Julii) was the residence of the kings of the Visigoths, one of whom, Alaric II., there drew up his famous code.
The great historical importance of Ravenna begins early in the 5th century, when Honorius, alarmed by the progress of Alaric in the north of Italy, transferred his court hither.