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POLITICAL HISTORY OF PARTHIA

this period was no doubt occupied by a long trip which Tiridates took to visit his mother and his brothers Pacorus, king of Atropatene, and Vologases, the Parthian monarch, who was at Ecbatana. In the interim the daughter of Tiridates and also his kingdom remained as hostages in Roman hands. The troops on the eastern frontier were kept ready for action, and there is evidence that the crossing near Melitene was used by troops which were pushed forward into Armenian territory.[1]

While the war was in progress Nero had erected a triumphal arch in Rome;[2] now that the struggle was concluded, he issued a series of coins to commemorate the closing of the Temple of Janus.[3]

On the long journey to Rome Tiridates took care to observe the Zoroastrian regulations which were laid on him by his priestly office.[4] The entire trip was made by land to avoid defiling the sea,[5] and the large sums of money required to support the three thou-

  1. The III Gallica under Titus Aurelius Fulvus was stationed at Ziata (Harput), where it apparently built a fortress at the command of Corbulo; see CIL, III, Nos. 6741–42a = Dessau 232.
  2. 31 Tac. Ann. xv. 18. 1. The arch is probably represented on coins; see Mattingly and Sydenham, Rom. Imp. Coin, I, 155, n. 1, and coins Nos. 147 ff.
  3. Mattingly and Sydenham, Rom. Imp. Coin., I, 156, n. 1, and coins Nos. 159 ff.
  4. Pliny Hist. nat. xxx. 16 f.; Tac. Ann. xv. 24.
  5. Pliny loc. cit.; The Zend-Avesta. I. The Vendidad, tr. by James Darmesteter ("The Sacred Books of the East," ed. F. Max Müller, IV [2d ed.; Oxford, 1895]), pp. lxxv–lxxvii.