Ariarathes I (c.405-322/321): ruler of Cappadocia.
- c.333: appointed satrap by the last Persian king Darius III Codomannus,
- 331: fights for Darius against Alexander the Great in the battle fo Gaugamela
- After 330: defends Cappadocia against the local Macedonian commander Antigonus the One-Eyed
- 323: death of Alexander
- 322/321: Alexander's successor Perdiccas defeats and captures Ariarathes, and has him executednote[Arrian, Events after Alexander]
Ariarathes was not succeeded as leader of independent Cappadocia, but his brother Orophernes' son Ariarathes II could restore autonomy after the battle of Ipsus (301) and founded a dynasty.