Tigran II, younger brother of Artavazd II and ruler of Armenia from 95 to 54 B.C., obtained the throne by ceding to the Parthians the districts which their predecessors had wrested from the Medes and Iberians, a seizure which supplied the excuse for the expedition of Mithridates II of Parthia.1 A quarrel arose between him and King Ardan (or Vardan) of Sophene, and Tigran attacked the latter, vanquished him and took over his domain. When Euphratean Armenia was thus suppressed, Tigran's kingdom then extended from the valley of the Kur to Melitine and Cappadocia. Mithridates VI of Pontus, who aspired to the annexation of Cappadocia, sought an alliance with Tigran by marrying one of his daughters to him. So by the treaty which followed the marriage, Cleopatra, a girl of courage as well as high