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| Peace of Brundisium | |
|---|---|
| Name | Peace of Brundisium |
| Date | 40 BC |
| Location | Brundisium |
| Participants | Octavian; Mark Antony; Marcus Aemilius Lepidus; Sextus Pompey (indirect) |
| Result | Division of Roman territories among Second Triumvirate members; temporary reconciliation |
Peace of Brundisium The Peace of Brundisium was a 40 BC agreement that temporarily resolved a crisis among the members of the Second Triumvirate—Octavian, Mark Antony, and Marcus Aemilius Lepidus—after internal rivalry and the setback posed by Sextus Pompey and the aftermath of the Philippics. The settlement redivided Roman provinces and magistracies, realigned alliances including a dynastic marriage, and postponed open civil war until the eventual collapse of the triumviral arrangement. It played a decisive role in shaping the political landscape of the late Roman Republic and influenced subsequent events such as the Perusine War and the eventual confrontation at the Battle of Actium.
In the aftermath of the Liberators' civil war and the establishment of the Second Triumvirate by the Lex Titia in 43 BC, tensions among Octavian, Mark Antony, and Marcus Aemilius Lepidus intensified over territorial control, military commands, and influence in Rome. The naval successes of Sextus Pompey threatened the grain supply to Rome and pressured the triumvirs to negotiate while Antony prepared campaigns in the Eastern provinces against client kings such as Phraates IV, and Octavian consolidated power in Italy and undertook propaganda battles reminiscent of the Philippi triumphs. Diplomatic maneuvering involved figures like Gaius Maecenas, envoys from Egypt including those tied to Cleopatra VII, and senators aligned with factions represented by Lucius Munatius Plancus and Marcus Vipsanius Agrippa.
Negotiations at Brundisium resulted from Antony’s return from the East and Octavian’s insistence on a formal settlement to avoid immediate hostilities similar to the earlier conflicts at Munda and Thapsus. The agreement allocated provinces and commands: Octavian retained the West, including some of the Italian holdings and nearby provinces such as Hispania Tarraconensis and Africa Proconsularis; Antony received the Eastern provinces including Asia (Roman province), Syria (Roman province), and client states like Judea; Lepidus was recognized in Africa and given proconsular authority over parts of Hispania Ulterior. The treaty cemented a political alliance through the marriage of Octavian to Scribonia followed by a dynastic arrangement involving Antony’s marriage to Octavian’s sister Octavia the Younger. To appease less powerful figures, the settlement involved magistracies and priesthoods distributed among supporters such as Publius Canidius Crassus, Quintus Salvidienus, and senators like Aulus Hirtius.
The accord temporarily stabilized relations among triumviral factions, enabling Antony to proceed with Eastern campaigns and Octavian to campaign in the West and secure his position in Rome, including support from the Senate of the Roman Republic. However, the peace deepened factionalism by formalizing territorial spheres that encouraged client rulers such as Herod the Great and dynasts like Ariarathes X to align with Antony. Lepidus’s marginalization foreshadowed his later removal from power after conflict with Octavian and Antony, while senators who opposed the triumvirate—figures like Marcus Tullius Cicero (posthumously influential in propaganda), Gaius Cassius Longinus affiliates, and supporters of the Pompeian legacy including followers of Gnaeus Pompeius Magnus—found new patronage networks. The settlement also influenced the position of Rome’s allies including the Aetolian League and the Achaean League.
Under the Brundisium terms, military commands and provincial legions were reallocated: Antony gained control of Eastern legions and fleets stationed in Illyricum and along the Aegean Sea, while Octavian consolidated forces in Italy and the western provinces, including naval resources inherited from campaigns against Sextus Pompey and commanders like Marcus Vipsanius Agrippa. The arrangement affected sieges and operations in regions such as Sicily, Sardinia, and Corsica and had implications for engagements with eastern powers like the Parthian Empire and client dynamics in Cyprus and Asia Minor. The repartitioning attempted to prevent clashes like the land battles at Perusia by delineating spheres of influence, but it also created flashpoints where naval supremacy and control of grain shipments—issues central to conflicts with Sextus Pompey and later Antony—remained contested.
Key personalities in the Brundisium negotiations included triumviral principals Octavian (later Augustus), Mark Antony, and Marcus Aemilius Lepidus. Influential intermediaries and supporters included Gaius Maecenas, Marcus Vipsanius Agrippa, Quintus Salvidienus, Lucius Antonius, and Octavia the Younger. External actors who shaped the context included Sextus Pompey, Cleopatra VII, Herod the Great, and eastern client rulers such as Ptolemy of Mauretania allies. Senators and commanders engaged in the surrounding political maneuvering included Lucius Munatius Plancus, Aulus Hirtius, Gaius Norbanus Flaccus, and aristocrats with ties to the Pompeian and Caesarian legacies.
Historians assess the Brundisium settlement as a pragmatic but unstable diplomatic compromise, marking a pause rather than a resolution in the Roman power struggle that culminated in the Battle of Actium and the end of the Roman Republic. Ancient sources including accounts transmitted via traditions linked to Plutarch, Cassius Dio, and later Appian shaped interpretations, while modern scholarship referencing institutions like the Institute for Advanced Study and works on the late Republic analyze its legal basis under the Lex Titia and its impact on provincial administration. The peace demonstrated the limits of power-sharing among prominent figures such as Pompey the Great’s heirs and underscored the role of military loyalty, dynastic marriage, and provincial control in the transition toward the Principate under Augustus.
Category:40s BC treaties Category:Roman Republic treaties