Antiochus III the Great
Seleucid king who restored empire but fell to Rome.
Antiochus III the Great (c. He ascended to the throne at age eighteen after the murder of his brother, Seleucus III Ceraunus, inheriting an empire in turmoil. Through a series of campaigns, he reasserted Seleucid authority over central Asia Minor, Parthia, Bactria, and parts of India, earning the epithet 'the Great' and the title Basileus Megas. His later conflict with the Roman Republic ended in defeat, leading to the loss of Seleucid lands in Asia Minor and his death during an eastern expedition.
- field
- Monarchy, military command
- nationality
- Seleucid (Hellenistic Greek)
- known_for
- Restoring the Seleucid Empire, war with Rome, epithet 'the Great'
Lore & Background
He succeeded his brother Seleucus III Ceraunus after the latter's murder in Anatolia, while Antiochus was in Babylon. The empire he inherited was disorganized: Asia Minor had detached, and eastern provinces like Bactria and Parthia had broken away under rebel governors. He also had his minister Hermeias assassinated. Meanwhile, his cousin Achaeus revolted in Asia Minor but was later captured and executed after a siege of Sardis.
Reader's Guide
Antiochus III's significance lies in his temporary restoration of the Seleucid Empire's territorial integrity and his role in the Hellenistic world's confrontation with Rome. His campaigns recovered central Asia Minor, Parthia, Bactria, and reached the Kabul valley, where he renewed friendship with the Indian king Sophagasenus. However, his intervention in Greek affairs and alliance with the Aetolian League provoked war with Rome.
Did You Know?
- Antiochus III assumed the title Basileus Megas, the traditional title of the Persian kings.
- He waged a four-year war against Rome beginning in mainland Greece in autumn 192 BC, advised by the exiled Carthaginian general Hannibal.
- He died three years after the Treaty of Apamea on another expedition to the east.
Frequently Asked Questions
How did Antiochus III become king?
He seized the throne at just eighteen after his elder brother Seleucus III Ceraunus was assassinated, inheriting a realm that had already lost significant ground to rival powers.
What are Antiochus III the Great's powers and role?
As a Hellenistic monarch and supreme military commander, he projected Seleucid authority from central Asia Minor eastward through Parthia, Bactria, and into portions of the Indian subcontinent.
Why is Antiochus III the Great important?
He is regarded as the last Seleucid ruler to hold a truly multi-regional empire together, and his clash with Rome marked the turning point after which Hellenistic power in the western Mediterranean could no longer be recovered.
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