an adapted or re-interpreted legionary standard). He may have officially ended – or attempted to end – blood sacrifices to the genius of living emperors but his Imperial iconography and court ceremonial elevated him to superhuman status. Constantine's permission for a new cult temple to himself and his family in Umbria is extant: the cult "should not be polluted by the deception of any contagious superstition". At the First Council of Nicaea Constantine united and re-founded the empire under an absolute head of state by divine dispensation and was honoured as the first Christian Imperial divus. On his death he was venerated and was held to have ascended to heaven. Philostorgius later criticised Christians who offered sacrifice at statues of the divus Constantine. His three sons re-divided their Imperial inheritance: Constantius II was an Arian – his brothers were Nicene. Constantine's nephew Julian, Rome's last non-Christian emperor, rejected the "Galilean madness" of his upbringing for a synthesis of neo-Platonism, Stoic asceticism and universal solar cult and actively fostered religious and cultural pluralism. His restored Augustan form of principate, with himself as primus inter pares, ended with his death in 363, after which his reforms were reversed or abandoned. The Western emperor Gratian refused the office of pontifex maximus and, against the protests of the Senate, removed the altar of Victoria (Victory) from the Senate House and began the disestablishment of the Vestals. Theodosius I briefly re-united the Western and Eastern halves of the Empire, officially adopted Nicene Christianity as the Imperial religion and ended official support for all other creeds and cults. He refused to restore Victoria to the Senate House, extinguished Vesta's sacred fire and vacated her temple. Even so, he accepted address as a living divinity, comparable to Hercules and Jupiter, by his overwhelmingly pagan Senate. After his death the sundered Eastern and Western halves of Empire followed increasingly divergent paths: nevertheless both were Roman and both had emperors. Imperial ceremonial – notably the Imperial adventus or ceremony of arrival, which derived in greater part from the Triumph – was embedded within Roman culture, Church ceremony and the Gospels themselves. The last Western divus was probably Libius Severus, who died in 465 AD. Very little is known about him. His Imperium was not recognised by his Eastern counterpart and he may have been a puppet-emperor of the Germanic general Ricimer. In the west, imperial authority was partly replaced