Career
Presumably, he was not the same Mithradates who accompanied the younger Cyrus - there is no proof of this. Neither he presumably was the same Mithradates mentioned by Xenophon as satrap of Cappadocia and Lycaonia in the late 5th century Bachelor of Civil Engineering. During the Satraps" Revolt in the 360s Bachelor of Civil Engineering, Mithridates tricked Datames to believe in him, but in the end arranged Datames" murder in 362 Bachelor of Civil Engineering. Mithradates was possibly one of those sons. In 363 Bachelor of Civil Engineering already, Ariobarzanes II (possibly Mithridates" son) made himself master of the family fiefdom of Cius in Mysia.
Number classical source actually says that this Mithradates would have died in 363 Bachelor of Civil Engineering. Such a death date comes merely from much later reconstructions of the succession in the dynasty, which may have gotten this man wrong.
However, if they are not separate persons, this Mithradates may well be the same man as the elderly Mithridates II of Cius who held Cius in Mysia between 337 and 302 Bachelor of Civil Engineering, being said to be an old man at that time.