Ariobarzanes of Phrygia

Pharnacid dynasty (Satraps of Hellespontine Phrygia)
c.550–497 BCE (Pharnaces) c.480–455 BCE Artabazus I c.455–430 BCE Pharnabazus I c.430–420 BCE Pharnaces II c.413–374 BCE Pharnabazus II c.407–362 BCE Ariobarzanes c.389–329 BCE Artabazus II c.370–320 BCE Pharnabazus III
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Ariobarzanes (Old Persian: *Aryābr̥zaⁿs;^[1] Ancient Greek: Ἀριοβαρζάνης Ariobarzánēs; death: crucified in c. 362 BCE), sometimes known as Ariobarzanes I of Cius, was a Persian Satrap of Phrygia and military commander, leader of an independence revolt, and the first known of the line of rulers of the Greek town of Cius who eventually were to stem the kings of Pontus in the 3rd century BCE. Ariobarzanes was apparently a cadet member of the Achaemenid dynasty, possibly son of Pharnabazus II, and part of the Pharnacid dynasty which had settled to hold Dascylium of Hellespont in the 470s BCE. Cius is located near Dascylium, and Cius seemingly was a share of family holdings for the branch of Ariobarzanes.

Ariobarzanes' one predecessor was a (kinsman) named Mithradates (possibly Mithradates, Satrap of Cappadocia). The archaeologist Walther Judeich claims that Ariobarzanes was that Mithradates' son, but Brian C. McGing refutes that specific filiation. Seemingly, no classical source itself calls them son and father, the filiation being a later reconstruction on basis of successorship.