
Gallienus depicted on a lead
seal
'Publius Licinius Egnatius Gallienus' (
218-
268) ruled the
Roman Empire as co-emperor with his father
Valerian from
253 to
260, and then as the sole
Roman Emperor from 260 to
268. He took control of the empire at a time when it was undergoing great crisis. His record in dealing with those crises is mixed, as he won a number of military victories but was unable to keep much of his realm from seceding.
Life
Rise to power
Gallienus was born around 218 to
Valerian and
Mariniana, a woman possibly of senatorial rank and daughter of Egnatius Victor Marinianus.
When his father
Valerian was proclaimed emperor, he asked the Senate to ratify Gallienus' elevation to
Augustus, in order to share the power between two persons.
As
Marcus Aurelius and his adopted brother Lucius Verus had done a hundred years before them, Gallienus and his father divided the Empire; Valerian struck for the East to stem the Persian threat and Gallienus remained in Italy to repel the Germanic tribes on the Rhine and Danube. This policy made sense not simply because the unhappy fates of several Emperors previous to this duo had made it clear that one man simply could not rule a state this size; equally, a 'barbarian' enemy suing for peace in this time tended to demand that they be allowed to apply to the 'chief' or 'king' of the victorious side. Therefore, an Emperor had to be available to negotiate if such a situation arose.
Reign
One of the key characteristics of the
Crisis of the Third Century was the inability of the Emperors to maintain their hold on the Imperium for any marked length of time. An exception to this rule was the reign of the Emperor Gallienus. That Gallienus served as junior Emperor with his father from 253 to 260 may have had something to do with his successes. Father and son did each wield his authority over a smaller area, thus allowing for more flexible control. Another, more probable reason, lay in Gallienus' success in convincing Rome that he was the best man for the job. However, Gallienus still had to handle many rebellions of the so-called "
Gallienus usurpers".
Little time was allowed this emperor for anything but the defense of the realm, but unlike some who occupied the throne before and after him, Gallienus appeared to understand that the Empire's history had to be preserved if it were to have been worth fighting for. Culture and the ancient humanities required promotion, and Gallienus was up to the task when he was allowed a breath. Traveling to
Attica in
Greece, he had himself initiated into the
mystery-cult of Eleusis and encouraged others to do the same. His coin series (further elucidated
below), in which he was depicted in the guise of several Greek deities, powerfully reminded ordinary Romans of the Hellenic side of their own culture. And
Plotinus of
Lycopolis, referred to as 'the last man of antiquity' by German historian
Ivar Lissner, was encouraged and patronized by the Roman royal family during this time. Given Plotinus'
Neo-Platonist beliefs and their concentrated nature centering about an ''ur-Soul'' or ''
nous'', it is very possible that Gallienus, in an attempt to counter Christianity, sought to curb its growth via some method other than persecution. For this he is well spoken of in
Eusebius'
Ecclesiastia Historica, just as he is not as fondly recalled for losing Gaul in
Eutropius'
Breviarium.
In 260, Valerian was taken prisoner by
Shapur I, ruler of the
Sassanid Empire, while trying to negotiate a peace settlement. Although aware that his father had been taken alive (the only emperor to have suffered this fate), Gallienus did not make public Valerian's death until a year later. His decision hinged on the fact that Romans believed that their fate rose and fell with the fate of the emperor, which in turn depended upon his demonstrating the proper amount of piety (Latin ''
pietas'') to the
gods and maintaining their favor. A defeated emperor would surely have meant that the gods had forsaken Valerian and, by extension, Gallienus. This belief had a point: after all, the Persians looted and murdered at will after Valerian was captured. It took a rally by a general
Callistus, a prefect
Macrianus, the remains of the Eastern Roman legions and one
Odaenathus and his
Palmyrene horsemen to turn the tide against Shapur.
Gallienus's chief method of reinforcing his position is seen in the
coinage produced during his reign. The coins provide clear evidence of a successful propaganda campaign in a time previous to television or newspapers. Quite a few of the Roman mints' issue had images of soldiers and the legend
FIDES MILITVM ("loyalty of the soldiers") as well, despite the constant usurper problems. Gallienus took pains to make sure that he was regularly represented as victorious, merciful, and pious. The peasants and merchants who used these coins on a daily basis saw these messages and, with little evidence to the contrary, remained supportive of their Emperor. Word of mouth, one hoped (and Rome's rumor mill was second to none in the ancient world), did the rest.
There were, however, those who knew better. Propaganda worked both ways; several comedians ambled through the
triumphal procession in Rome that Gallienus staged in
263 to commemorate his
decennalia (tenth anniversary on the throne). When asked what they were doing, they answered that they were searching for the Emperor's father. As if anticipating this, Gallienus had had a number of men dressed in Persian costumes to resemble prisoners of war.
During Gallienus' reign, there was constant fighting on the western fringes of the Empire. As early as 258, Gallienus had lost control over a large part of Gaul, where another general,
Postumus, had declared his own realm (typically known today as the
Gallic Empire). As Gallienus' influence waned, another general came to the fore. In time-honored tradition,
Claudius II Gothicus gained the loyalty of the army and succeeded Gallienus to the Imperium.
Death
In the months leading up to his mysterious death in September of 268, Gallienus was ironically orchestrating the greatest achievements of his reign. An invasion of
Goths into the province of
Pannonia was leading to disaster and even threatening Rome, while at the same time, the
Alamanni were raising havoc in the northern part of Italy. Gallienus halted the progress of the Alamanni by defeating them in battle in April 268, then turned north and won several victories over the Goths. That fall, he turned on the Goths once again, and in September either he or Claudius, his leading general, led the Roman army to victory (although the cavalry commander
Aurelian was the real victor) at the
Battle of Naissus.
At some time following this battle, Gallienus' authority was challenged by
Aureolus, commander of the field army in
Mediolanum (Milan), who supported
Postumus. Gallienus moved to lay siege to Mediolanum, but during the siege he was murdered.
There are different accounts of the murder. According to the
Historia Augusta, an unreliable source compiled long after the events it describes
[1], a conspiracy was led by the commander of the guard
Aurelianus Heraclianus and
Marcianus. Cecropius, commander of the Dalmatians, spread the word that Aureolus was leaving the city, and Gallienus left his tent without his bodyguard, only to be struck down by Cecropius (''Historia Augusta - Gallieni'', xiv.4-11). One version has Claudius selected as emperor by the conspirators, another chosen by Gallienus on his death bed; the Historia Augusta was concerned to substantiate the descent of the
Constantinian dynasty from Claudius, and this may explain its accounts which do not involve Claudius in the murder. The other sources, (
Zosimus i.40 and
Zonaras xii.25, report that the conspiracy was organized by Heraclianus, Claudius and Aurelian.
Gallienus' wife,
Cornelia Salonina, had given him three sons:
Valerianus (who died in 258),
Saloninus (who, after becoming co-emperor, died in 260 by the hand of his tutor Postumus), and Egnatius Marinianus (consul in 268). Claudius spared the lives of Gallienus' family and declared his predecessor deified.
Legacy
Gallienus has been dealt with harshly by ancient historians, partly due to the secession of Gaul and his inability to get it back. According to the modern scholar Pat Southern, however, some historians now see him in a more positive light. Gallienus was the father of some important reforms. His contribution to military history was the first commissioning of a
cavalry only unit which could be dispatched anywhere within the empire within short order. This reform arguably created a precedent for the future emperors
Diocletian and
Constantine I. The historian
Aurelius Victor also reports that Gallienus forbade
senators from becoming military commanders. This policy undermined senatorial power, as more reliable
equestrian commanders rose to prominence. In Southern's opinion, these reforms and the decline in senatorial influence not only helped Aurelian to salvage the Empire, but they also make Gallienus one of the emperors most responsible for the creation of the
dominate, along with
Septimius Severus, Diocletian and Constantine. In his accessing the costumes of the gods on the coins he issued during his reign, Gallienus began the final separation of the Emperor from his subjects. A late bust of Gallienus (see above) shows him of largely blank face and gazing heavenward as we see on the famous stone head of
Constantine I. One of the last rulers of Rome to be theoretically called "Princeps" or First Citizen, Gallienus' shrewd self-promotion assisted in paving the way for those who would be addressed with the words "Dominus et Deus" (Lord and God).
References
★ John Bray, ''Gallienus : A Study in Reformist and Sexual Politics''
★ Pat Southern, ''The Roman Empire from Severus to Constantine''. London and New York: Routledge, 2001.
★ Ivar Lissner, "Power and Folly; The Story of the Caesars". Jonathan Cape Ltd., London, 1958.
★ A H M Jones, ''Ammianus and the Historia Augusta'', The Clarendon Press, Oxford, 1968
External links
★
"Valerian and Gallienus", at ''De Imperatoribus Romanis''.