Triumvirate
A triumvirate is rule, a commission or a political alliance of three people. In Roman history the word is most often linked with two late Republican alliances: the First Triumvirate of Caesar, Pompey and Crassus and the Second Triumvirate of Octavian, Antony and Lepidus.
In brief:
- the literal meaning is 'three men', tres viri;
- the First Triumvirate was a private agreement without a formal law;
- the Second Triumvirate was an extraordinary state commission;
- both alliances reveal the crisis of normal Republican institutions.
Quick answer
| Search intent | One-paragraph answer | Read next |
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triumvirate meaning / what is a triumvirate |
A triumvirate is rule, a commission or a political alliance of three leaders. In Roman history the key examples are the First Triumvirate of Caesar, Pompey and Crassus and the Second Triumvirate of Octavian, Antony and Lepidus. |
The First Triumvirate was an informal alliance, while the Second was legally established and received extraordinary powers. They should not be treated as identical in status.
Common follow-up questions
Was a triumvirate a monarchy? No. It concentrated power in three participants, not in one king or emperor.
Why do the triumvirates matter? They show the crisis of republican institutions and Rome’s movement toward one-man rule.
Topic guide
In brief
| Question | Answer |
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What it was |
An alliance or board of three political leaders created to control power and divide authority. |
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Main examples |
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Why it matters |
The triumvirates show the institutional crisis of the late Roman Republic. |
Participants
| Triumvirate | Participants | Read next |
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First |
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Second |
Timeline
| Date | Event | Significance |
|---|---|---|
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60 BCE |
Caesar, Pompey and Crassus form an informal alliance. |
The First Triumvirate bypasses ordinary republican politics. |
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53 BCE |
Crassus dies. |
The balance between the partners collapses. |
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43 BCE |
The Second Triumvirate is legally established. |
Three men receive extraordinary powers. |
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31-30 BCE |
Antony and Cleopatra are defeated. |
Octavian becomes the sole centre of power. |
Key articles
- First Triumvirate
- Second Triumvirate
- Roman Republic
- Political system of Republican Rome
- Domestic politics in Republican Rome
FAQ
Was a triumvirate an official office? The First Triumvirate was an informal political alliance. The Second Triumvirate was established by law and received extraordinary powers.
How did a triumvirate differ from the consulship? The consulship was a regular magistracy with annual turnover. A triumvirate concentrated power in three leaders during a crisis.
Why does the topic matter for Roman history? The triumvirates show how elite rivalry, armies and patronage networks undermined the republican balance.
First and Second Triumvirates compared
| Alliance | Members | Status |
|---|---|---|
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First Triumvirate |
Caesar, Pompey, Crassus |
Private political agreement |
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Second Triumvirate |
Octavian, Antony, Lepidus |
Official extraordinary commission |
What is a triumvirate in brief
In simple terms, a triumvirate is rule or an agreement by three influential participants. In Rome the term matters because it shows how personal alliances and extraordinary commissions began to replace normal republican mechanisms of power.
First and Second Triumvirates
The main difference between the two triumvirates was legal status. The First Triumvirate formed around 60 BCE as a private alliance of three powerful politicians. Gaius Julius Caesar gained support for his consulship and his later command in Gaul,Gnaeus Pompey the Great sought ratification of his eastern settlement and land for his veterans,and Marcus Licinius Crassus defended the interests of his clients and equestrian tax contractors. The alliance broke down after the death of Julia and Crassus' defeat at Carrhae. The Second Triumvirate was created in 43 BCE after Caesar's assassination. Its members were Octavian Augustus,Mark Antony and Marcus Aemilius Lepidus. Unlike the first alliance,it received legal extraordinary powers,carried out proscriptions and fought Caesar's assassins. The internal conflict between the triumvirs ended with Octavian's victory and the creation of the Principate.
Why triumvirates became possible
The triumvirates were not the result of a single intrigue but of a systemic Republican crisis. The Senate could no longer reliably balance the interests of commanders,veterans,provinces,equestrians and the urban plebs. Victorious generals returned with armies,prestige and clients,while political decisions were increasingly forced through street pressure,popular assemblies and military power. The First Triumvirate showed that a private coalition could paralyse senatorial opposition. The Second Triumvirate went further: it turned a temporary alliance of three leaders into a legal emergency regime. For that reason the topic matters not only for the biographies of Caesar or Octavian,but also for understanding the transition from Republic to Empire.
Related topics
I. Late Republic - Roman Republic - Political system of the Roman Republic - Domestic politics in Republican Rome II. First Triumvirate - First Triumvirate - Gaius Julius Caesar - Gnaeus Pompey the Great - Marcus Licinius Crassus III. Second Triumvirate - Second Triumvirate - Octavian Augustus - Mark Antony - Marcus Aemilius Lepidus IV. Reference - Roman numerals
Literature
Ancient sources 1. Plutarch. Parallel Lives. Caesar,Pompey,Crassus,Antony. 2. Appian. The Civil Wars. 3. Suetonius. The Divine Julius; Augustus. 4. Cassius Dio. Roman History. Modern studies 1. Erich S. Gruen. The Last Generation of the Roman Republic. 2. Ronald Syme. The Roman Revolution. 3. Christian Meier. Caesar.
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