| (Aristonicus) Eumenes III | |
|---|---|
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| King of Pergamon | |
| Reign | 133–129 BC |
| Predecessor | Attalus III |
| Successor | Roman conquest |
| Greek | (Αριστόνικος) Ευμένης Γ΄ |
| House | Attalid dynasty |
| Father | Eumenes II (?) |
| Mother | unknown |
| Religion | Greek Polytheism |
Eumenes III (/juːˈmɛniːz/; ‹See Tfd›Greek: Εὐμένης Γʹ; originally named Aristonicus; in Greek Aristonikos Ἀριστόνικος) was a pretender to the throne of Pergamon. He led the revolt against the Pergamene regime and found success early on, seizing various cities near the coast of Anatolia, including the island of Samos, and killing the Roman Consul Publius Licinius Crassus Dives Mucianus. However, the revolt was eventually quelled by the Roman Republic in 129 BC when it dispatched the experienced Marcus Perperna to the region.