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POLITICAL HISTORY OF PARTHIA

Niger attempted to escape to the Parthians but failed. Some of his followers, more successful, gave military advice to Parthia.[1]

While the attention of the Romans was occupied by the struggle between Severus and Niger, Vologases fomented a revolt in Osroene and Adiabene, and troops from these districts besieged Nisibis.[2] After the death of Niger they sent ambassadors to Severus to lay claims before the Emperor by virtue of the aid which they had given him in attacking a city which had sheltered his opponent's sympathizers! They also promised to restore what spoils remained as well as the Roman prisoners. But they refused to surrender the cities which they had captured or to receive garrisons, and they demanded that the Romans completely evacuate that territory.[3]

Late in the spring of 195 Severus crossed the Euphrates and advanced into enemy territory. At Edessa Abgarus IX, ruler of the surrounding area, joined Severus, gave his sons as hostages, and assumed the name Septimius.[4] The next advance was to Nisibis, where Severus established his headquarters. The legionaries suffered greatly on this long march. Per-

  1. Dio Cass. lxxv. 8. 3; Herodian iii. 4. 7 f.
  2. Dio Cass. lxxv. 1. 1 f. (Loeb, IX, p. 194). For Vologases' part in the revolt see Mšiḥa Zkha, p. 21 (tr. p. 98).
  3. Dio Cass. lxxv. 1 f. (Loeb, IX, pp. 194–96).
  4. Herodian iii. 9. 2. These events should probably be placed in the first campaign (contrary to Herodian). See also Spart. Severus 9. 9 and 18. 1; Victor De Caes. 20. 14–17.