This proved effectual.

Mithradates yielded on all points; Gordius had to assume the blame of the Cappadocian troubles, and the pseudo-Ariarathes disappeared; the election of king, which the Pontic faction had vainly attempted to direct towards Gordius, fell on the respected Cappadocian Ariobarzanes.
First Contact between the Romans and the Parthians When Sulla in following out his expedition arrived in the region of the Euphrates, in whose waters the Roman standards were then first mirrored, the Romans came for the first time into contact with the Parthians, who in consequence of the variance between them and Tigranes had occasion to make approaches to the Romans.

On both sides there seemed a feeling that it was of some moment, in this first contact between the two great powers of the east and the west, that neither should renounce its claims to the sovereignty of the world; but Sulla, bolder than the Parthian envoy, assumed and maintained in the conference the place of honour between the king of Cappadocia and the Parthian ambassador.

Sulla's fame was more increased by this greatly celebrated conference on the Euphrates than by his victories in the east; on its account the Parthian envoy afterwards forfeited his life to his masters resentment.

But for the moment this contact had no further result.