Majorian is acclaimed as Western Roman emperor.

Majorian was Western Roman emperor from 457 to 461. A prominent commander in the Western military, Majorian deposed Avitus in 457 with the aid of his ally Ricimer at the Battle of Placentia. Possessing little more than Italy and Dalmatia, as well as some territory in Hispania and northern Gaul, Majorian campaigned vigorously for three years against the Empire's enemies. In 461, he was murdered at Dertona in a conspiracy, and his successors until the fall of the Empire in 476 were puppets either of barbarian generals or the Eastern Roman court.

In modern historiography, the Western Roman Empire was the western provinces of the Roman Empire, collectively, during any period in which they were administered separately from the eastern provinces by a separate, independent imperial court. Particularly during the period from AD 395 to 476, there were separate, coequal courts dividing the governance of the empire into the Western provinces and the Eastern provinces with a distinct imperial succession in the separate courts. The terms Western Roman Empire and Eastern Roman Empire were coined in modern times to describe political entities that were de facto independent; contemporary Romans did not consider the Empire to have been split into two empires but viewed it as a single polity governed by two imperial courts for administrative expediency. The Western Empire collapsed in 476, and the Western imperial court in Ravenna disappeared by AD 554, at the end of Justinian's Gothic War.