[67] As Mithridates was now at leisure he subdued the tribes of the Bosphorus and appointed Machares, one of his sons, king over them. Then he fell upon the Achaeans beyond Colchis (who are supposed to be descended from those who lost their way when returning from the Trojan War), but lost two divisions of his army, partly by open war, partly by the severity of the climate, and partly by stratagem. When he returned home he sent ambassadors to Rome to sign the agreements.

At the same time Ariobarzanes, either of his own notion or at the prompting of others, sent thither to complain that Cappadocia had not been delivered up to him, but that a greater part of it was yet retained by Mithridates. Sulla commanded Mithridates to give up Cappadocia. He did so, and then sent another embassy to sign the agreements. But now Sulla had just died, and as the Senate was otherwise occupied the praetors did not admit them.

So Mithridates persuaded his son-in-law, Tigranes, to make an incursion into Cappadocia as though it were on his own account. This artifice did not deceive the Romans. The Armenian king threw, as it were, a drag net around Cappadocia and made a haul of about 300,000 people, whom he carried off to his own country and settled them, with others, in a certain place where he had first assumed the diadem of Armenia and which he had called after himself, Tigranocerta, or the city of Tigranes.

[68] While these things were taking place in Asia, Sertorius, the governor of Spain, incited that province and all the neighboring country to rebel against the Romans, and selected from his associates a senate in imitation of that of Rome. Two members of his faction, Lucius Magius and Lucius Fannius, proposed to Mithridates to ally himself with Sertorius, holding out the hope that he would acquire a large part of the province of Asia and of the neighboring nations.

Mithridates fell in with this suggestion and sent ambassadors to Sertorius. The latter introduced them to his senate and felicitated himself that his fame had extended to Pontus, and that he could now besiege the Roman power in both the Orient and the Occident. So he made a treaty with Mithridates to give him Asia, Bithynia, Paphlagonia, Cappadocia, and Galatia, and sent Marcus Varius to him as a general and the two Luciuses, Magius and Fannius, as counselors.

With their assistance Mithridates began his third and last war against the Romans, in the course of which he lost his entire kingdom, and Sertorius lost his life in Spain. Two generals were sent against Mithridates from Rome; the first, Lucullus, the same who had served as prefect of the fleet under Sulla; the second, Pompey, by whom the whole of his dominions, and the adjoining territory as far as the river Euphrates, under the pretext and impetus of the Mithridatic war, were brought under Roman sway.