[197-202 A.D.]
After a short stay at Rome Severus set out again for the East; for the Parthians, taking advantage of his absence, had invaded Mesopotamia, and laid siege to Nisibis. They retired, however, when they heard of his approach, and Severus, having passed the winter in Syria making preparations for the war, crossed the Tigris the following summer (198) and laid siege to Ctesiphon. The Roman soldiers suffered greatly for want of supplies, and were reduced to feed on roots and herbage, which produced dysenteries, but the emperor persevered, and the city at length was taken. All the full-grown males were massacred, and the women and children, to the number of one hundred thousand, were sold for slaves. As want of supplies did not permit the Romans to remain beyond the Tigris, they returned to Mesopotamia, and on his way to Syria (199) Severus laid siege to the redoubtable Atræ, but he was forced to retire, with a great loss both of men and machines. He renewed the attack some time after (it is uncertain in what year) but with as little success, being obliged to retire with loss and disgrace from before the impregnable fortress.
Severus remained in the East till the year 202. He spent a part of that time in Egypt, where he took great pleasure in examining the pyramids and the other curiosities of that country. He at length returned to Rome, to celebrate the marriage of his elder son.
The family of Severus consisted of his wife and two sons. The empress, named Julia Domna, was a native of Emesa in Syria, whom Severus, who was addicted to astrology, is said to have espoused because she had a royal nativity. She was a woman of great beauty, sense, and spirit, and a cultivator of literature and philosophy. The elder son was at first named Bassianus; but his father, at the time of the war against Albinus, created him cæsar, by the name of Aurelius Antoninus;[43] and he was subsequently nicknamed Caracalla, which, to avoid confusion, is the name employed by modern historians. In the year 198 Severus created him augustus, and made him his associate in the empire. The name of the emperor’s younger son was Geta, and he also was styled Antoninus.
The bride selected for Caracalla was Plautilla, the daughter of Plautianus, the prætorian prefect. This man was a second Sejanus, and it is very remarkable that two emperors of such superior mental powers as Tiberius and Severus should have been so completely under the influence of their ministers. Plautianus, like his master, was an African by birth; he was of mean extraction, and he seems to have early attached himself to the fortune of his aspiring countryman, whose favour and confidence he won in an extraordinary degree; and when Severus attained the empire, the power of Plautianus grew to such a height, that he, the historian observes, was, as it were, emperor, and Severus captain of the guards. Persons like Plautianus, when elevated, rarely bear their faculties meekly. He was therefore proud, cruel, and avaricious; he was the chief cause of so many persons of rank and fortune being put to death, in order that he might gain their properties. He seized whatever took his fancy, whether sacred or profane, and he thus amassed such wealth that it was commonly said he was richer than Severus and his sons. Such was his pride that no one dared approach him without his permission; and when he appeared in public criers preceded him, ordering that no one should stop and gaze at him, but turn aside and look down. He would not allow his wife to visit or to receive visits, not even excepting the empress. As his power was so great, he was of course the object of universal adulation. The senators and soldiers swore by his fortune, and his statues were set up in all parts of the empire. He was in effect more dreaded and more honoured than the emperor himself.
[202-208 A.D.]
Such power is, however, unstable in its very nature, and the marriage of his daughter with the son of the emperor caused the downfall of Plautianus. The wedding was celebrated with the utmost magnificence; the dower of the bride, we are told, would have portioned fifty princesses. [But the usual allowances must be made for exaggerations of the gossipers. Some of the tales related by Dion Cassius[e] are not worthy of repetition even, though perhaps told in good faith. Doubtless all details as to the death of Plautianus must be heard with reservations.] Plautilla was haughty like himself; and Caracalla, who had been forced to marry her, hated father and daughter alike, and resolved on their destruction. He induced one Saturninus and two other centurions to declare that Plautianus had ordered them and seven of their comrades to murder Severus and his son. A written order to this effect was forged and shown to the emperor, who forthwith summoned Plautianus to his presence. He came suspecting nothing; he was admitted, but his followers were excluded. Severus, however, addressed him in a mild tone, and asked him why he had meditated killing him. Plautianus was expressing his surprise and commencing his defence, when Caracalla sprang forward, tore his sword from him, struck him with his fist, and would have slain him with his own hand but for the interference of his father. He then made some of his attendants despatch him, and sent his head to the empress and Plautilla, a joyful sight to the one, a mournful spectacle to the other. Plautilla and her brother Plautius were sent to the isle of Lipara, where they lived in poverty and misery for the remainder of the reign of Severus, and their murder was one of the first acts of Caracalla when emperor.
Severus now remained in Italy for a space of four years, actively engaged in the administration of justice, the regulation of the finances, and the correction of all kinds of abuses. He conferred the important post of prætorian prefect on Papinian, the most renowned of jurisconsults; and as it was now a part of this officer’s duty to try civil causes, Papinian appointed as his assessors Paulus and Ulpian—names nearly as distinguished as his own.
[208-211 A.D.]
In the year 208, Severus, though far advanced in years and a martyr to the gout, set out for Britain, where the northern tribes had for some time been making their usual incursions into the Roman part of the island. Various motives are assigned for this resolution; the most probable is that he wished to remove his sons from the luxury of Rome, and to restore the relaxed discipline of the legions. He entered the wild country north of the Roman wall, cut down the woods, and passed the marshes, and succeeded in penetrating to the extremity of the island, though with a loss, it is said, of fifty thousand men; for the barbarians, who would never venture to give him battle, hung on his flanks and rear, formed numerous ambuscades, and cut off all stragglers. In order to check their future incursions, he repaired and strengthened the mound or wall which Hadrian had constructed from the shore of Solway Firth to the mouth of the Tyne.