Europe 422: Battle of Tarraco
The death of Constantius III in September 421 left the Western Roman military command dominated by the rivals Castinus (supported by Emperor Honorius) and Bonifatius (supported by Honorius’ sister Placidia). Their relations became so bad that when, in 422, the two generals were ordered to deal with the Vandals in Hispaniae, their ongoing quarrels soon led Bonifatius to flee to Africa. Castinus continued on, but was defeated by the Vandals when his Visigothic auxiliaries (also likely aligned with Placidia) deserted him and fled to nearby Tarraco.
422 Treaty of Dara▲
Following the incursion of the Huns into Thrace in the winter of 421/422, the Eastern Roman emperor Theodosius II dispatched the courtier Helion to the Persian front to make peace with Shah Bahram V. At first Bahram refused, but, after a number of unsuccessful clashes, he bowed to Roman pressure in early 422. The two sides then signed a treaty, agreeing to return the frontier to the status quo ante bellum and to tolerate each other’s religions in their own territories.
422 Exile of Bonifatius▲
When, in early 422, the Western magister militum Flavius Castinus was ordered to lead a campaign against the Vandals in Hispaniae, the general Bonifatius was appointed to join him—a move probably instigated by Emperor Honorius’ sister Galla Placidia to limit Castinus’ power. The two generals immediately took to quarreling and, soon afterwards, Bonifatius fled from Ravenna to Africa. This move was endorsed by Placidia early the following year, when she arranged for Bonifatius to become comes Africae.
At some point in the 420s, possibly around 421 or 422, the Western Roman army attacked the Salian Franks, killing the Frankish king Theodemer and his mother Ascyla. These deaths may have brought an end to a short-lived Frankish revolt, but ultimately failed to stem the growing power of the Salians.
422 Battle of Tarraco▲
In 422 the Western Roman government dispatched the newly appointed magister militum Flavius Castinus with a large force of Roman troops and Visigothic auxiliaries to attack the Vandals, who were at large in Baetica, Hispaniae. After successfully surrounding the Vandals, Castinus offered battle, only to be defeated when the Visigoths deserted him. Having lost an alleged 20,000 men, he fled to Tarraco, blaming the disaster on collusion between Honorius’ sister Galla Placidia, Bonifatius, and the Visigoths.