The Decline and Fall of the Roman Empire · Chapter 19 (4/7)

The departure of Constantius from Rome was hastened by the alarming intelligence of the distress and danger of the Illyrian provinces. AD 357⁠–⁠359 The distractions of civil war, and the irreparable loss which the Roman legions had sustained in the battle of Mursa, exposed those countries, almost without defence, to the light cavalry of the Barbarians; and particularly to the inroads of the Quadi, a fierce and powerful nation, who seem to have exchanged the institutions of Germany for the arms and military arts of their Sarmatian allies.2290 The garrisons of the frontier were insufficient to check their progress; and the indolent monarch was at length compelled to assemble, from the extremities of his dominions, the flower of the Palatine troops, to take the field in person, and to employ a whole campaign, with the preceding autumn and the ensuing spring, in the serious prosecution of the war. The emperor passed the Danube on a bridge of boats, cut in pieces all that encountered his march, penetrated into the heart of the country of the Quadi, and severely retaliated the calamities which they had inflicted on the Roman province. The dismayed Barbarians were soon reduced to sue for peace: they offered the restitution of his captive subjects as an atonement for the past, and the noblest hostages as a pledge of their future conduct. The generous courtesy which was shown to the first among their chieftains who implored the clemency of Constantius encouraged the more timid, or the more obstinate, to imitate their example; and the Imperial camp was crowded with the princes and ambassadors of the most distant tribes, who occupied the plains of the Lesser Poland, and who might have deemed themselves secure behind the lofty ridge of the Carpathian Mountains. While Constantius gave laws to the Barbarians beyond the Danube, he distinguished with specious compassion the Sarmatian exiles who had been expelled from their native country by the rebellion of their slaves, and who formed a very considerable accession to the power of the Quadi. The emperor, embracing a generous but artful system of policy, released the Sarmatians from the bands of this humiliating dependence, and restored them, by a separate treaty, to the dignity of a nation united under the government of a king, the friend and ally of the republic. He declared his resolution of asserting the justice of their cause, and of securing the peace of the provinces by the extirpation, or at least the banishment, of the Limigantes, whose manners were still infected with the vices of their servile origin. The execution of this design was attended with more difficulty than glory. The territory of the Limigantes was protected against the Romans by the Danube, against the hostile Barbarians by the Theiss. The marshy lands which lay between those rivers, and were often covered by their inundations, formed an intricate wilderness, pervious only to the inhabitants, who were acquainted with its secret paths and inaccessible fortresses. On the approach of Constantius, the Limigantes tried the efficacy of prayers, of fraud, and of arms; but he sternly rejected their supplications, defeated their rude stratagems, and repelled with skill and firmness the efforts of their irregular valor. One of their most warlike tribes, established in a small island towards the conflux of the Theiss and the Danube, consented to pass the river with the intention of surprising the emperor during the security of an amicable conference. They soon became the victims of the perfidy which they meditated. Encompassed on every side, trampled down by the cavalry, slaughtered by the swords of the legions, they disdained to ask for mercy; and with an undaunted countenance still grasped their weapons in the agonies of death. After this victory a considerable body of Romans was landed on the opposite banks of the Danube; the Taifalae, a Gothic tribe engaged in the service of the empire, invaded the Limigantes on the side of the Theiss; and their former masters, the free Sarmatians, animated by hope and revenge, penetrated through the hilly country into the heart of their ancient possessions. A general conflagration revealed the huts of the Barbarians, which were seated in the depth of the wilderness; and the soldier fought with confidence on marshy ground, which it was dangerous for him to tread. In this extremity the bravest of the Limigantes were resolved to die in arms, rather than to yield: but the milder sentiment, enforced by the authority of their elders, at length prevailed; and the suppliant crowd, followed by their wives and children, repaired to the Imperial camp, to learn their fate from the mouth of the conqueror. After celebrating his own clemency, which was still inclined to pardon their repeated crimes and to spare the remnant of a guilty nation, Constantius assigned for the place of their exile a remote country, where they might enjoy a safe and honorable repose. The Limigantes obeyed with reluctance; but before they could reach, at least before they could occupy, their destined habitations, they returned to the banks of the Danube, exaggerating the hardships of their situation, and requesting, with fervent professions of fidelity, that the emperor would grant them an undisturbed settlement within the limits of the Roman provinces. Instead of consulting his own experience of their incurable perfidy, Constantius listened to his flatterers, who were ready to represent the honor and advantage of accepting a colony of soldiers, at a time when it was much easier to obtain the pecuniary contributions than the military service of the subjects of the empire. The Limigantes were permitted to pass the Danube; and the emperor gave audience to the multitude in a large plain near the modern city of Buda. They surrounded the tribunal, and seemed to hear with respect an oration full of mildness and dignity when one of the Barbarians, casting his shoe into the air, exclaimed with a loud voice, Marha! Marha!2291 a word of defiance, which was received as a signal of the tumult. They rushed with fury to seize the person of the emperor; his royal throne and golden couch were pillaged by these rude hands; but the faithful defence of his guards, who died at his feet, allowed him a moment to mount a fleet horse, and to escape from the confusion. The disgrace which had been incurred by a treacherous surprise was soon retrieved by the numbers and discipline of the Romans; and the combat was only terminated by the extinction of the name and nation of the Limigantes. The free Sarmatians were reinstated in the possession of their ancient seats; and, although Constantius distrusted the levity of their character, he entertained some hopes that a sense of gratitude might influence their future conduct. He had remarked the lofty stature and obsequious demeanor of Zizais, one of the noblest of their chiefs. He conferred on him the title of King; and Zizais proved that he was not unworthy to reign by a sincere and lasting attachment to the interests of his benefactor, who, after this splendid success, received the name of Sarmaticus from the acclamations of his victorious army.2292

While the Roman emperor and the Persian monarch, at the distance of three thousand miles, defended their extreme limits against the Barbarians of the Danube and of the Oxus, their intermediate frontier experienced the vicissitudes of a languid war, and a precarious truce. AD 358 Two of the Eastern ministers of Constantius, the Praetorian prefect Musonian, whose abilities were disgraced by the want of truth and integrity, and Cassian, duke of Mesopotamia, a hardy and veteran soldier, opened a secret negotiation with the satrap Tamsapor.2293 2294 These overtures of peace, translated into the servile and flattering language of Asia, were transmitted to the camp of the Great King; who resolved to signify, by an ambassador, the terms which he was inclined to grant to the suppliant Romans. Narses, whom he invested with that character, was honorably received in his passage through Antioch and Constantinople: he reached Sirmium after a long journey, and, at his first audience, respectfully unfolded the silken veil which covered the haughty epistle of his sovereign. Sapor, King of Kings, and Brother of the Sun and Moon (such were the lofty titles affected by Oriental vanity), expressed his satisfaction that his brother, Constantius Caesar, had been taught wisdom by adversity. As the lawful successor of Darius Hystaspes, Sapor asserted that the River Strymon in Macedonia was the true and ancient boundary of his empire; declaring, however, that as an evidence of his moderation, he would content himself with the provinces of Armenia and Mesopotamia, which had been fraudulently extorted from his ancestors. He alleged that, without the restitution of these disputed countries, it was impossible to establish any treaty on a solid and permanent basis; and he arrogantly threatened that, if his ambassador returned in vain, he was prepared to take the field in the spring, and to support the justice of his cause by the strength of his invincible arms. Narses, who was endowed with the most polite and amiable manners, endeavored, as far as was consistent with his duty, to soften the harshness of the message.2295 Both the style and substance were maturely weighed in the Imperial council, and he was dismissed with the following answer: “Constantius had a right to disclaim the officiousness of his ministers, who had acted without any specific orders from the throne: he was not, however, averse to an equal and honorable treaty; but it was highly indecent, as well as absurd, to propose to the sole and victorious emperor of the Roman world the same conditions of peace which he had indignantly rejected at the time when his power was contracted within the narrow limits of the East: the chance of arms was uncertain; and Sapor should recollect that, if the Romans had sometimes been vanquished in battle, they had almost always been successful in the event of the war.” A few days after the departure of Narses, three ambassadors were sent to the court of Sapor, who was already returned from the Scythian expedition to his ordinary residence of Ctesiphon. A count, a notary, and a sophist had been selected for this important commission; and Constantius, who was secretly anxious for the conclusion of the peace, entertained some hopes that the dignity of the first of these ministers, the dexterity of the second, and the rhetoric of the third,2296 would persuade the Persian monarch to abate of the rigor of his demands. But the progress of their negotiation was opposed and defeated by the hostile arts of Antoninus,2297 a Roman subject of Syria, who had fled from oppression, and was admitted into the councils of Sapor, and even to the royal table, where, according to the custom of the Persians, the most important business was frequently discussed.2298 The dexterous fugitive promoted his interest by the same conduct which gratified his revenge. He incessantly urged the ambition of his new master to embrace the favorable opportunity when the bravest of the Palatine troops were employed with the emperor in a distant war on the Danube. He pressed Sapor to invade the exhausted and defenceless provinces of the East, with the numerous armies of Persia, now fortified by the alliance and accession of the fiercest Barbarians. The ambassadors of Rome retired without success, and a second embassy of a still more honorable rank was detained in strict confinement, and threatened either with death or exile.

The military historian,2299 who was himself despatched to observe the army of the Persians, as they were preparing to construct a bridge of boats over the Tigris, beheld from an eminence the plain of Assyria, as far as the edge of the horizon, covered with men, with horses, and with arms. AD 359 Sapor appeared in the front, conspicuous by the splendor of his purple. On his left hand, the place of honor among the Orientals, Grumbates, king of the Chionites, displayed the stern countenance of an aged and renowned warrior. The monarch had reserved a similar place on his right hand for the king of the Albanians, who led his independent tribes from the shores of the Caspian.2300 The satraps and generals were distributed according to their several ranks, and the whole army, besides the numerous train of Oriental luxury, consisted of more than one hundred thousand effective men, inured to fatigue, and selected from the bravest nations of Asia. The Roman deserter, who in some measure guided the councils of Sapor, had prudently advised that, instead of wasting the summer in tedious and difficult sieges, he should march directly to the Euphrates, and press forwards without delay to seize the feeble and wealthy metropolis of Syria. But the Persians were no sooner advanced into the plains of Mesopotamia than they discovered that every precaution had been used which could retard their progress or defeat their design. The inhabitants, with their cattle, were secured in places of strength, the green forage throughout the country was set on fire, the fords of the rivers were fortified by sharp stakes; military engines were planted on the opposite banks, and a seasonable swell of the waters of the Euphrates deterred the Barbarians from attempting the ordinary passage of the bridge of Thapsacus. Their skilful guide, changing his plan of operations, then conducted the army by a longer circuit, but through a fertile territory, towards the head of the Euphrates, where the infant river is reduced to a shallow and accessible stream. Sapor overlooked, with prudent disdain, the strength of Nisibis; but, as he passed under the walls of Amida, he resolved to try whether the majesty of his presence would not awe the garrison into immediate submission. The sacrilegious insult of a random dart, which glanced against the royal tiara, convinced him of his error; and the indignant monarch listened with impatience to the advice of his ministers, who conjured him not to sacrifice the success of his ambition to the gratification of his resentment. The following day Grumbates advanced towards the gates with a select body of troops, and required the instant surrender of the city as the only atonement which could be accepted for such an act of rashness and insolence. His proposals were answered by a general discharge, and his only son, a beautiful and valiant youth, was pierced through the heart by a javelin, shot from one of the balistae. The funeral of the prince of the Chionites was celebrated according to the rites of the country; and the grief of his aged father was alleviated by the solemn promise of Sapor that the guilty city of Amida should serve as a funeral pile to expiate the death, and to perpetuate the memory, of his son.