Roman civil war of 427–429
When the central government tried to deput Bonifatius as governor of North-Africa, he separated his territory from the empire without proclaiming himself emperor.Several high-ranking persons interfered in the exercise of the emperorship, including the emperor of the eastern part of the empire Theodosius II (his cousin), his mother Galla Placidia and the commander-in-chief of the Roman army (magister utriusque militum) Castinus.Boniface, who had played a key role in the restoration of the Theodosian dynasty in the West, was only rewarded with the function of comes domesticorum (commander of the imperial house troops).He had the Senate declare Bonifatius as an enemy of the state after he refused to appear before the court in Ravenna, to answer for an indictment of high treason.After a second defeat, Placidia called him back to deal with Aëtius, while Aspar remained in Africa to keep the Vandals under control.When the central government tried to deject him, he separated from the empire without proclaiming himself emperor, which had always been the usual course of events of rebels to legitimize their position.Boniface carried the personal loyalty of his troops and was able to lead them at his own discretion during this war, in exchange for providing protection - even at the expense of the Roman people.