Now Arzanene was certainly on the left bank of the Tigris. It adjoined Armenia, and is reasonably identified with the modern district of Kherzan, which lies between Lake Van and the Tigris, to the west of the Bitlis river. All the notices of Arzanene suit this locality; and the name “Kherzan” may be regarded as representing the ancient appellation.
Zabdicene was a little south and a little east of this position. It was the tract about a town known as Bezabda (perhaps a corruption of Beit-Zabda), which had been anciently called Phoenica. This town is almost certainly represented by the modern Fynyk, on the left bank of the Tigris, a little above Jezireh. The province whereof it was the capital may perhaps have adjoined Arzanene, reaching as far north as the Bitlis river.
If these two tracts are rightly placed, Cordyene must also be sought on the left bank of the Tigris. The word is no doubt the ancient representative of the modern Kurdistan, and means a country in which Kurds dwelt. Now Kurds seem to have been at one time the chief inhabitants of the Mons Masius, the modern Jebel Kara j ah Dagh and Jebel Tur, which was thence called Oordyene, Gordyene, or the Gordisean mountain chain. But there was another and a more important Cordyene on the opposite side of the river. The tract to this day known as Kurdistan, the high mountain region south and south-east of Lake Van between Persia and Mesopotamia, was in the possession of Kurds from before the time of Xenophon, and was known as the country of the Carduchi, as Cardyene, and as Cordyene. This tract, which was contiguous to Arzanene and Zabdicene, if we have rightly placed those regions, must almost certainly have been the Cordyene of the treaty, which, if it corresponded at all nearly in extent with the modern Kurdistan, must have been by far the largest and most important of the five provinces.
The two remaining tracts, whatever their names, must undoubtedly have lain on the same side of the Tigris with these three. As they are otherwise unknown to us (for Sophene, which had long been Roman, cannot have been one of them), it is impossible that they should have been of much importance. No doubt they helped to round off the Roman dominion in this quarter; but the great value of the entire cession lay in the acquisition of the large and fruitful province of Cordyene, inhabited by a brave and hardy population, and afterwards the seat of fifteen fortresses which brought the Roman dominion to the very edge of Adiabene, made them masters of the passes into Media, and laid the whole of Southern Mesopotamia open to their incursions. It is probable that the hold of Persia on the territory had never been strong; and in relinquishing it she may have imagined that she gave up no very great advantage; but in the hands of Rome Kurdistan became a standing menace to the Persian power, and we shall find that on the first opportunity the false step now taken was retrieved, Cordyene with its adjoining districts was pertinaciously demanded of the Romans, was grudgingly surrendered, and was then firmly re-attached to the Sassanian dominions.
(ii.) The Tigris is said by Patricius and Festus to have been made the boundary of the two empires. Gibbon here boldly substitutes the Western Khabour and maintains that “the Roman frontier traversed, but never followed, the course of the Tigris.” He appears not to be able to understand how the Tigris could be the frontier, when five provinces across the Tigris were Roman. But the intention of the article probably was, first, to mark the complete cession to Rome of Eastern as well as Western Mesopotamia, and, secondly, to establish the Tigris as the line separating the empires below the point down to which the Romans held both banks. Cordyene may not have touch the Tigris at all, or may have touched it only about the 37th parallel. From this point southwards, as far as Mosul, or Nimrud, or possibly Kileh Sherghat, the Tigris was probably now recognized as the dividing line between the empires. By the letter of the treaty the whole Euphrates valley might indeed have been claimed by Rome; but practically she did not push her occupation of Mesopotamia below Circeshim. The real frontier from this point was the Mesopotamian desert, which extends from Kerkesiyeh to Nimrud, a distance of 150 miles. Above this it was the Tigris, as far probably as Feshapoor; after which it followed the line, whatever it was, which divided Oordyene from Assyria and Media.
(iii.) The extension of Armenia to the fortress of Zintha, in Media, seems to have imported much more than would at first sight appear from the words. Gibbon interprets it as implying the cession of all Media Atropatene, which certainly appears a little later to be in the possession of the Armenian monarch, Tiridates. A large addition to the Armenian territory out of the Median is doubtless intended; but it is quite impossible to determine definitely the extent or exact character of the cession.
(iv.) The fourth article of the treaty is sufficiently intelligible. So long as Armenia had been a fief of the Persian empire, it naturally belonged to Persia to exercise influence over the neighboring Iberia, which corresponded closely to the modern Georgia, intervening between Armenia and the Caucasus. Now, when Armenia had become a dependency of Rome, the protectorate hitherto exercised by the Sassanian princes passed naturally to the Caesars; and with the protectorate was bound up the right of granting investiture to the kingdom, whereby the protecting power was secured against the establishment on the throne of an unfriendly person. Iberia was not herself a state of much strength; but her power of opening or shutting the passes of the Caucasus gave her considerable importance, since by the admission of the Tatar hordes, which were always ready to pour in from the plains of the North, she could suddenly change the whole face of affairs in North-Western Asia, and inflict a terrible revenge on any enemy that had provoked her. It is true that she might also bring suffering on her friends, or even on herself, for the hordes, once admitted, were apt to make little distinction between friend and foe; but prudential considerations did not always prevail over the promptings of passion, and there had been occasions when, in spite of them, the gates had been thrown open and the barbarians invited to enter. It was well for Rome to have it in her power to check this peril. Her own strength and the tranquillity of her eastern provinces were confirmed and secured by the right which she (practically) obtained of nominating the Iberian monarchs.
(v.) The fifth article of the treaty, having been rejected by Narses and then withdrawn by Sicorius, need not detain us long. By limiting the commercial intercourse of the two nations to a single city, and that a city within their own dominions, the Romans would have obtained enormous commercial advantages. While their own merchants remained quietly at home, the foreign merchants would have had the trouble and expense of bringing their commodities to market a distance of sixty miles from the Persian frontier and of above a hundred from any considerable town; they would of course have been liable to market dues, which would have fallen wholly into Roman hands; and they would further have been chargeable with any duty, protective or even prohibitive, which Rome chose to impose. It is not surprising that Narses here made a stand, and insisted on commerce being left to flow in the broader channels which it had formed for itself in the course of ages.
Rome thus terminated her first period of struggle with the newly revived monarchy of Persia by a great victory and a great diplomatic success. If Narses regarded the terms—and by his conduct he would seem to have done so—as moderate under the circumstances, our conclusion must be that the disaster which he had suffered was extreme, and that he knew the strength of Persia to be, for the time, exhausted. Forced to relinquish his suzerainty over Armenia and Iberia, he saw those countries not merely wrested from himself, but placed under the protectorate, and so made to minister to the strength, of his rival. Nor was this all. Rome had gradually been advancing across Mesopotamia and working her way from the Euphrates to the Tigris. Narses had to acknowledge, in so many words, that the Tigris, and not the Euphrates, was to be regarded as her true boundary, and that nothing consequently was to be considered as Persian beyond the more eastern of the two rivers. Even this concession was not the last or the worst. Narses had finally to submit to see his empire dismembered, a portion of Media attached to Armenia, and five provinces, never hitherto in dispute, torn from Persia and added to the dominion of Rome. He had to allow Rome to establish herself in force on the left bank of the Tigris, and so to lay open to her assaults a great portion of his northern besides all his western frontier. He had to see her brought to the very edge of the Iranic plateau, and within a fortnight’s march of Persia Proper. The ambition to rival his ancestor Sapor, if really entertained, was severely punished; and the defeated prince must have felt that he had been most ill-advised in making the venture.
Narses did not long continue on the throne after the conclusion of this disgraceful, though, it may be, necessary, treaty. It was made in A.D. 297. He abdicated in A.D. 301. It may have been disgust at his ill-success, it may have been mere weariness of absolute power, which caused him to descend from his high position and retire into private life. He was so fortunate as to have a son of full age in whose favor he could resign, so that there was no difficulty about the succession. His ministers seem to have thought it necessary to offer some opposition to his project; but their resistance was feeble, perhaps because they hoped that a young prince would be more entirely guided by their counsels. Narses was allowed to complete his act of self-renunciation, and, after crowning his son Hormisdas with his own hand, to spend the remainder of his days in retirement. According to the native writers, his main object was to contemplate death and prepare himself for it. In his youth he had evinced some levity of character, and had been noted for his devotion to games and to the chase; in his middle age he laid aside these pursuits, and, applying himself actively to business, was a good administrator, as well as a brave soldier. But at last it seemed to him that the only life worth living was the contemplative, and that the happiness of the hunter and the statesman must yield to that of the philosopher. It is doubtful how long he survived his resignation of the throne, but tolerably certain that he did not outlive his son and successor, who reigned less than eight years.