The last of the Spartocids, Paerisades V, apparently left his realm to Mithridates VI Eupator, king of Pontus.
This transition was arranged by one of Mithridates's generals, Diophantus, who earlier had been sent to Taurica to help local Greek cities against Palacus of Lesser Scythia.
The mission did not go smoothly: Paerisades was murdered by Scythians led by Saumacus, and Diophantus escaped to return later with reinforcements to suppress the revolt (c. 110 BC).

Half of a century later, Mithridates took his life in Panticapaeum, when, after his defeat in a war against Rome, his son and heir Pharnaces and citizens of Panticapaeum turned against him.
The last of the Spartocids, Paerisades V, apparently left his realm to Mithridates VI Eupator, king of Pontus. This transition was arranged by one of Mithridates's generals, Diophantus, who earlier had been sent to Taurica to help local Greek cities against Palacus of Lesser Scythia. The mission did not go smoothly: Paerisades was murdered by Scythians led by Saumacus, and Diophantus escaped to return later with reinforcements to suppress the revolt (c. 110 BC).
Half of a century later, Mithridates took his life in Panticapaeum, when, after his defeat in a war against Rome, his son and heir Pharnaces and citizens of Panticapaeum turned against him.
Panticapaeum