Theodosius I
was born in Spain
on 11th January 347. His father, also called Theodosius, was a
general who was involved in the campaign to restore Britain to the Empire after the
“Great Conspiracy” of 367. It is quite likely that the younger Theodosius accompanied
him on this campaign. It is certainly the case that he learned a great deal
about the arts of war from his father.
The elder
Theodosius was later involved in a rigged trial in which he was unjustly
accused of treason and then executed in 376. It was possibly for this reason,
as a way of making amends, that Emperor Gratian appointed the younger
Theodosius to take military control of Illyricum
after the death of Valens, who was Gratian’s co-Emperor.
Theodosius
had no experience of senior command but was clearly a fast learner. He allowed
himself to be declared Eastern Emperor in January 379, which was not actually
unwelcome news to Gratian, whose officials offered Theodosius all the help he
needed. Being in charge of the Eastern Empire was clearly going to be a
difficult job, after what had happened to Valens, and anyone who was willing to
do it was welcome to do so.
However, it
was not possible for him to claim the throne in any realistic sense until the
problem of the Goths had been settled. He therefore decided to set up court in
Thessalonica rather than Constantinople so
that he could keep an eye on both the northern and eastern frontiers.
Theodosius
continued to benefit from assistance from Gratian’s generals up until the
treaty of 382 that Theodosius struck with the Goths. This gave them lands in
the Balkans, to be governed by their own chiefs, in return for giving service,
when required, to the Roman forces in the east. The effect of this treaty was,
far from the Goths becoming staunch allies of Rome, that they were henceforth mere
pawns in the power struggles between different parts of the Roman bureaucratic
machine.
Despite the
generosity that Gratian had shown to Theodosius, when the former faced problems
of his own Theodosius did not rush to his aid. Indeed, when Magnus Maximus
invaded Gaul from Britain in
383, Theodosius responded by recognising Maximus’s claim to be Emperor of
Britain, Gaul, and Spain .
However, Maximus then invaded Italy
in 386, sending the young co-Emperor Valentinian II (then aged 15) into exile
in Theodosius’s part of the Empire. Theodosius responded by attacking Maximus,
who was captured and executed near Aquileia .
Valentinian was restored to power, but only nominally, with Theodosius being
the only Emperor that mattered.
Theodosius
made use of the services of marshals to mop up any further resistance, one of
these being the Frankish general Arbogast, who placed Valentinian under house
arrest at Vienne . When Valentinian tried to
depose Arbogast, he paid with his life.
In 390, while
Theodosius was in Milan ,
a riot broke out in Thessalonica and several officials were killed. Theodosius
sent an army of Goths eastwards to take revenge on the city. The people were
tricked into gathering in the circus where they were massacred, with at least
7,000 people being killed. This act led St Ambrose to rebuke Theodosius and
demand that he acknowledge his guilt, which he did in front of the whole
congregation in the church at Milan .
The Emperor was excommunicated for eight months.
Civil war
broke out in 394 between Theodosius and Arbogast, which the former represented
as a war between Christianity and paganism. Theodosius regarded his victory at
the Battle of the Frigidus in September as being due to divine intervention in
the form of a violent storm.
Theodosius
died in January 395, having declared that his sons Arcadius (18) and Honorius
(11) would rule jointly after him.
Theodosius
was the last Emperor who could claim to rule the whole Empire. The split that
followed between east and west placed the Balkan dioceses of Illyricum and
Macedonia, which included the lands settled by the Goths after 382, in the west.
The Goths therefore became a problem that only the Western
Empire would have to face in future.
© John
Welford