War between Armenia and Iberia (AD 51) War broke out between the Armenians and Iberians, and it also caused very serious disturbances between Parthia and Rome. Vologeses was the King of the Parthians. He was the offspring of a Greek concubine, who obtained the throne by the retirement of his brothers. Pharasmanes had been long in hold of Iberia. His brother, Mithridates, ruled Armenia with the powerful support of the two. [1]