conspirators are explicitly mentioned by name in some of these passages, but only when referring to a specific event: the Capuan conspiracy of 314 BC investigated by the dictator Gaius Maenius. [1, 2]

The primary historical source that names these individuals is Livy 9.26. The other listed classical texts mention Gaius Maenius himself or his monuments (like the Columna Maenia or the Rostra), but do not contain names of conspirators. The 19th-century German scholars you noted analyze these specific passages to debate the topography of the Roman Forum and the judicial nature of Maenius's dictatorship. [1, 2, 3, 4]

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1. Breakdown of the Ancient Passages

• Livy 9.26 (Latin & English):
  • Context: In 314 BC, Gaius Maenius was appointed dictator to investigate secret coalitions and conspiracies at Capua and Rome.
  • Conspirators named: The Calavii brothers (Ovius and Novius Calavius).
  • Latin excerpt: ...dirigi quaestiones Capuae... ut, seu timore seu conscientia, Calavii, Ovius Noviusque, qui capita eius coniurationis fuerant, antequam indiceretur ad dictatorem, morte voluntaria, ut constat, iudicium vitaverint.
  • English Translation: "...the investigations were ordered to be conducted at Capua... so that, whether from fear or a guilty conscience, the Calavii, Ovius and Novius, who had headed the conspiracy, before informations could be lodged against them with the dictator, avoided trial by a death which was undoubtedly self-inflicted." [1, 2, 3, 4]
• Livy 8.13: Mentions Gaius Maenius as consul (338 BC) defeating the Latins at the Battle of Antium. No domestic conspirators are named here. [1, 2]
• Florus I.11 (or 1.2): Discusses the Roman victory over Antium and notes that Maenius fixed the captured ships' beaks (rostra) to the speaker's platform in the forum. No conspirators are named. [1, 2]
• Pliny, Natural History 7.60 & 24.11: Reference the Columna Maenia (Maenian Column) as a physical landmark used by the consul’s herald to announce the final hour of the day (supremam horam). It does not list conspirators. [1, 2]
• Cicero, Pro Sestio 58 & Brutus 74: Cicero utilizes the Columna Maenia as a geographic visual anchor—historically, the column became a gathering place for thieves, debtors, and low-level criminals. No political plotters are named. [1, 2]

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2. The 19th-Century Academic Debate

The three German classicists you mentioned are tightly linked by a specific academic dialogue regarding Maenius's history and the architecture of the Forum:

[B. G. Niebuhr] (History of Rome, 1828)
       │
       ▼ (Critiqued/Expanded)
[W. A. Becker] (Handbuch der Römischen Alterthümer, 1846)
       │
       ▼ (Specifically cited on this architectural link)
[F. G. Osann] (De Columna Maenia, 1844)

• Barthold Georg Niebuhr: In his History of Rome, he heavily scrutinized Livy 9.26. He interpreted Maenius's dictatorship as a landmark political struggle where elite Roman patricians successfully twisted a foreign conspiracy investigation to target new plebeian citizens up-and-coming in politics. [, 2, 3]
• Wilhelm Adolf Becker: In his architectural reference handbooks, Becker focused on why Cicero associated the Columna Maenia with the "lower elements" of Rome. He cross-examined Pliny, Cicero, and Livy to isolate the physical location of the tribunal where Maenius sat during judicial trials. [1, 2]
• Friedrich Gotthilf Osann (Ossan): He wrote the definitive 1844 treatise Commentatio de Columna Maenia. Osann pulled together all of these specific texts (Livy, Pliny, Cicero) to map out how Maenius's balcony additions (maeniana) shifted from a seat for judges to a spectator deck for public games. [1, 2, 3, 4]

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Would you like to examine the historical motivations behind the Calavii brothers' conspiracy at Capua, or look closer into how the Roman legal definition of a conspiracy evolved during the Samnite Wars? [1, 2, 3]