for Tigranes, he belonged more to his own natural father than his father-in-law, and for the boundaries, he would take care that they should be according to right and justice.
So Pompey, leaving Armenia in the custody of Afranius, went himself in chase of Mithridates; to do which he was forced of necessity to march through several nations inhabiting about Mount Caucasus. Of these the Albanians and Iberians were the two chiefest. The Iberians stretch out as far as the Moschian mountains and the Pontus; the Albanians lie more eastwardly, and towards the Caspian Sea. These Albanians at first permitted Pompey, upon his request, to pass through the country; but when winter had stolen upon the Romans whilst they were still in the country, and they were busy celebrating the festival of Saturn, they mustered a body of no less than forty thousand fighting men, and set upon them, having passed over the river Cyrnus, which rising from the mountains of Iberia, and receiving the river Araxes in its course from Armenia, discharges itself by twelve mouths into the Caspian. Or, according to others, the Araxes does not fall into it, but they flow near one another, and so discharge themselves as neighbors into the same sea. It was in the power of Pompey to have obstructed the enemy's passage over the river, but he suffered them to pass over quietly; and then leading on his forces and giving battle, he routed them, and slew great numbers of them in the field. The king sent ambassadors with his submission, and Pompey upon his supplication pardoned the offense, and making a treaty with him, he marched directly against the Iberians, a nation no less in number than the other, but much more warlike, and extremely desirous of gratifying Mithridates, and driving out Pompey. These Iberians were never subject to the Medes or Persians, and they happened likewise to escape the dominion of the Macedonians, because Alexander was so quick in his march through Hyrcania. But these also Pompey subdued in a great battle, where there were slain nine thousand upon the spot, and more than ten thousand taken prisoners. From thence he entered into the country of Colchis, where Servilius met him by the river Phasis, bringing the fleet with which he was guarding the Pontus.