The ancestor would be one of the seven, to whom the kingdom of Pontus was given for his services; Polyb. 5, 43. Mithridates Eupator calls himself the sixteenth after Darius; Appian, "Bell. Mith." c. 112; cf. Justin, 38, 7. These quotations will be sufficient to show that the rank of the six tribal princes of the Persians, like that of the chief princes, was originally hereditary, as the governorships left to their descendants outside Persia must have remained in their families. [527] p. 728, 729. [528] Strabo, p. 729, puts Pasargadae on the Cyrus. Stephanus ([Greek: Passargadai]) following Anaximenes of Lampsacus, represents Pasargadae as first built by Cyrus; so Curt. 5, 11: Cyrus Pasargadum urbem condiderat. It cannot be doubted that Cyrus built there, and Alexander, according to Arrian (3, 18), found there the treasures of Cyrus. Strabo also tells us that Cyrus built the city and citadel, p. 730. From the accounts of the march of Alexander from Persepolis to Pasargadae, and from his return from the Indus to Pasargadae and Persepolis, it is clear that Pasargadae lay to the east or south-east of Persepolis. If Pasargadae is placed at Murghab, the only reason is the statement that the grave of Cyrus was at Pasargadae, and this grave has been identified with the pyramid of Murghab, in the immediate proximity of which a relief exhibits the picture of Cyrus. But the portrait of Cyrus there is very different from the portrait of Darius and his successors on the tombs at Rachmed, and Naksh-i-Rustem; and the building at Murghab may have served another purpose. According to Pliny ("H. N." 6, 26, 29) we ought to look for Pasargadae to the south of Lake Bakhtegan, near Fasa, or Darabgerd; flumen Sitioganus, quo Pasargadas septimo die navigatur. Sitioganus is the modern Sitaragan. Ptolemy puts Pasargadae in the neighbourhood of Caramania, and Oppert therefore identifies it with the ruins of Tell-i-Zohak near Fasa, and looks for the mountain Paraga of the inscriptions in the modern Forg: "Journal Asiat." 1872, p. 549. CHAPTER IV. THE FALL OF THE MEDIAN KINGDOM.