Ariobarzanes II of Atropatene also known as Ariobarzanes of Media; Ariobarzanes of Armenia; Ariobarzanes II; Ariobarzanes II of Media Atropatene and Ariobarzanes was king of Media Atropatene who ruled sometime from 28 BC to 20 BC until 4 and was appointed by the Roman emperor Augustus to serve as a Roman client king of Armenia from 2 AD until 4. Wikipedia