set up one if its own generals as Western Emperor in his place. To prevent this, German staff officers hastily summoned Valentinian's widow Justina and her four-year-old son, who was proclaimed Emperor as Valentinian II at Aquincum (Budapest). Neither Gratian nor Valens had been consulted. But they accepted the child as joint ruler, and assigned him half of the Western Empire, comprising Italy, north Africa, and most of the Balkans.
The Eastern Empire now suffered a terrible setback, which profoundly affected East and West alike. This was the battle of Adrianople (Hadrianopolis, now Edirne in European Turkey) which had been fought against the Visigoths.
Descriptions of the various, differing Germanic peoples can be found in E. A. Thompson, Romans and Barbarians: The Decline of the Western Empire (1982) and J. D. Randers-Pehrson, Barbarians and Romans: The Birth Struggle of Europe, AD 400-700 (1983). There were two great German states in eastern Europe, the Ostrogoths ('bright Goths') in the Ukraine, and the Visigoths ('wise Goths') centred upon what is now Rumania. But the formidable cavalry of the Huns, a non-German people, had broken into these regions in about 370, destroying the Ostrogothic kingdom and driving 200,000 Visigoths before them across the Danube into the Eastern Roman Empire, where the representatives of Valens allowed them to settle. However, these Visigoths very soon complained, with a good deal of justice, that they were being oppressed and exploited by the Eastern Romans, against whom they consequently rebelled. Led by their chieftain Fritigern, they devastated the Balkans, while at the same time further German tribesmen burst across the Danube in their wake. The Eastern Emperor Valens hurried from Asia to deal with the emergency, and moved to the attack at Adrianople on 9 August 378. But the Visigoths, after a successful flank attack by their horsemen, won an overwhelming victory. The Roman cavalry fled and the Roman infantry was utterly destroyed. Valens perished, but no one ever found his body.
'We might stop here,' declared the nineteenth-century historian Victor Duruy; 'the invasion has begun: Fritigern has come right up to the gates of Constantinople: in a few years Alaric will take Rome.'
THEODOSIUS I
The Western Emperor Gratian, having failed to reach Adrianople in time, moved back again into his own territories. But he also took steps to appoint a new colleague. His choice fell on the thirty-two-year-old Theodosius, the son of a land-owner of the same name from Cauca (North-west Spain) who had at one time (before falling into disgrace) been Valentinian I'S most successful general. Proclaimed Emperor at Sirmium, his son ruled for ten years in the Eastern Empire, to which the West now ceded the greater part of the Balkans. Then he became the ruler of the Western Empire as well, so that the two Empires were momentarily reunited before his death.
Theodosius, with his fine aquiline nose and hair as fair as Valentinian's, presented an elegant appearance. But Theodosius was less uniformly energetic, oscillating between passionate activity and indolence, between the simple existence of a soldier and a resplendent court life, diversified by the reading of Roman history. He liked to dole out cruel sentences and penalties, but was quick to revoke them and grant pardons. Greedy and extravagant, he wanted to please, and tried to keep his promises, though he lacked the reputation of a reliable friend or chief.
Theodosius was called 'the Great', because of the uncompromising Christian orthodoxy which characterized his reign. Its other dominant feature was the acceptance of the Visigoths en bloc inside the Empire (382), to live under their own laws and ruler on the condition that they provided soldiers and agricultural workers for the Romans - the first of a number of German nations to be granted such allied, 'federate' status.
Theodosius soon lost his Western colleague Gratian, murdered at Lyon in