A Three-Layer Analysis (TLA) of Livy, History of Rome, Book 1
1. Research Question
Why does regime change occur not as a calm choice of an ideal system, but as a limit reaction when a community feels that it can no longer survive under the existing system?
Livy’s History of Rome, Book 1 describes the rise and fall of the Roman monarchy. It is often read as a story of the expulsion of the tyrant Tarquinius Superbus and the birth of the Roman Republic.
However, from the viewpoint of Three-Layer Analysis (TLA), this regime change was not simply a rational choice of republican government as an ideal system. It was a limit reaction. The existing monarchy had ceased to function as a device for preserving the Roman community.
This study analyzes the end of the Roman monarchy through OS Organizational Design Theory (OSODT). It examines why regime change occurs when the existing OS can no longer protect the community.
2. Abstract
This research case analyzes the transition from monarchy to republic in Livy’s History of Rome, Book 1 through Three-Layer Analysis (TLA).
Layer 1 identifies the chain of events in the age of Tarquinius Superbus: the killing of Servius Tullius, the seizure of royal power, rule by fear, the Lucretia incident, the action of Brutus, and the expulsion of the Tarquin family.
Layer 2 extracts the structural order behind these events. Royal power originally functioned as the governing core for founding, expanding, and maintaining Rome. However, in the final phase of the monarchy, royal power changed from a state-forming engine into a state-destroying factor.
Layer 3 derives the main insight. Regime change is not only a choice of a better ideal system. It is an emergency response that occurs when the existing OS can no longer function as a device for preserving the community.
The end of the Roman monarchy was not merely the expulsion of a tyrant. It was an OS update. The power of command was removed from the exclusive control of one king and redistributed to multiple offices, assemblies, and institutions.
3. Research Method
This study uses Three-Layer Analysis (TLA).
Layer 1 organizes the events in Livy’s History of Rome, Book 1 as facts. The main focus is the final phase of the monarchy: the seizure of power by Tarquinius Superbus, rule by fear, the Lucretia incident, the action of Brutus, and the expulsion of the Tarquin family.
Layer 2 reads these events as structural order. The main structural elements are royal power, the Senate, the assembly, civic approval, the army, the royal family, the people, and regime change.
Layer 3 uses OS Organizational Design Theory (OSODT) to abstract the meaning of regime change. The analysis refers to the purpose of the OS, Decision-Criteria Validity (V), Information Flow Architecture (IA), Human Resource Governance (H), Trust (T), Resilience (R), and the validity of the existing regime.
Through this method, the transition from monarchy to republic is understood not only as a political change, but as the result of the self-recovery failure of the community OS and the redistribution of Control Variables.
4. Layer 1: Fact
In Livy’s History of Rome, Book 1, the Roman monarchy is not described as negative from the beginning.
Romulus founded Rome. He organized law, created the Senate, increased the population, and integrated surrounding communities. Numa established religious institutions and trust. He transformed a warlike people into a more stable community through religion and peace. Tullus, Ancus, Tarquinius Priscus, and Servius Tullius also contributed to the formation, expansion, and institutionalization of Rome.
However, in the final phase of the monarchy, the nature of royal power changed.
Servius Tullius developed Rome into a larger political community through the census, property classes, centuries, and the assembly. He moved Rome toward a more institutional form of rule.
But Tarquinius Superbus used royal power not for the institutional development of the community, but for self-preservation and rule by fear.
Tarquinius did not inherit royal power through stable approval. He seized power by removing Servius. He then maintained royal power through the killing of leading men, exile, confiscation of property, and fear.
The Lucretia incident made this crisis visible.
Sextus Tarquinius, a member of the royal family, threatened Lucretia and destroyed her honor. This was not only a private crime. It showed that a person connected to royal power could destroy the safety, family order, honor, and trust of Roman citizens.
After Lucretia’s death, Brutus did not only seek revenge against the Tarquin family. He swore that no one would ever again be allowed to rule as king in Rome. At this point, grief turned into anger. Anger over one crime became rejection of the monarchy itself.
Finally, Tarquinius was refused entry into Rome and was declared an exile. Brutus was received by the army as a liberator. The monarchy ended. After that, two consuls were elected by the centuriate assembly, and Rome moved toward republican rule.
5. Layer 2: Order
From the viewpoint of Layer 2, Roman monarchy was not simply personal domination.
Royal power was the governing core that carried founding, war, institution-building, and judgment. In the founding phase, Rome lacked population, institutions, and legitimacy. For this reason, royal power functioned as a high-output OS. It allowed Rome to form, expand, and establish order in a short time.
In this sense, monarchy was not a failed system from the beginning. It was necessary for launching Rome.
However, as the state expanded and became more institutionalized, the required role of royal power changed. In the founding phase, military ability, decision-making power, connection with divine authority, and institution-building capacity were important. But in the mature phase, royal power had to align with the Senate, the assembly, civic approval, the army, religious institutions, records, and property order.
If royal power served the purpose of the community, monarchy could still function. But if royal power was replaced by private purposes, monarchy changed into a destructive system.
This was the structural change that occurred under Tarquinius Superbus.
Royal power no longer functioned as the core for integrating Rome. It became a device for preserving the royal family. The Senate lost its corrective function. Civic approval moved closer to fear and formality. The army and alliances also tended to support royal power rather than the common good.
In OSODT terms, this means that Decision-Criteria Validity (V) declined. An OS should make decisions according to the survival and function of the community. But when the personal purpose of the decision-maker overwrites the purpose of the OS, the criteria of judgment shift from community preservation to ruler preservation.
Even if institutions such as the Senate, assembly, command authority, and army still exist, they become hollow if they no longer function as correction, oversight, or approval.
Therefore, the crisis at the end of the Roman monarchy was not merely bad rule by one king. It was a structural crisis in which the monarchy OS changed from a community-preserving device into a community-destroying device.
6. Layer 3: Insight
Regime change is not always the choice of an ideal system. It is often an emergency response to the self-recovery failure of the existing OS.
The Romans did not first design a perfect republican ideal and then calmly choose it. Rather, they reached the point where continuing the monarchy itself threatened the survival of the community. At that point, abolishing the monarchy became the only way to protect Rome.
The important point is that monarchy itself was not evil from the beginning. In the founding phase, monarchy was effective. In the age of Romulus, Rome needed to gather population, organize law, create the Senate, build the army, and integrate neighboring groups. In this phase, concentrated royal power worked as a force of integration.
However, in the mature phase, the same concentration of power became a risk. As the community became larger and more complex, a structure dependent on one king made correction and oversight difficult. If the king no longer served the community purpose and instead pursued self-preservation, concentrated royal power changed from integration power into destructive power.
The problem under Tarquinius was not the absence of institutions. The king, Senate, army, alliances, and command authority still existed. The problem was that these elements were used not to protect the community, but to preserve the royal family, rule by fear, confiscate property, and remove opponents.
In other words, the trigger of regime change was not the absence of institutional form. It was the capture of institutional purpose.
The Lucretia incident made this structural crisis visible. The crime by a member of the royal family showed that the body, family order, honor, and trust of citizens could be destroyed by those connected to royal power. This incident changed dissatisfaction with the monarchy into rejection of the monarchy OS itself.
The action of Brutus is important because he did not see the problem as only the crime of Sextus. He redefined the problem as the danger of the monarchy itself. When he swore that no one would again become king in Rome, he treated the crisis as a regime-level problem, not as a private crime.
Furthermore, regime change did not mean the disappearance of command authority. It meant the redistribution of command authority.
After the expulsion of the Tarquin family, Rome did not abandon government. It elected two consuls and moved the command authority that had been concentrated in one king into multiple offices, assemblies, records, and procedures.
This was not the simple destruction of the old OS. It was the redistribution of Control Variables.
Therefore, regime change is not a leap into an ideal system. It is a limit reaction. It occurs when a community judges that it can no longer survive under the existing OS and moves command authority into a new operating structure.
7. Implications for the Present
This structure also applies to modern companies, public organizations, and communities.
In an organization, a system that was effective in one phase can become dysfunctional in the next phase. In the founding phase, a strong founder or leader can be effective because fast decision-making is needed. But as the organization grows, departments, rules, personnel systems, evaluation systems, and information channels become more complex. At that stage, continuing the same centralized OS can become dangerous.
Strong leadership that once created integration can become uncorrectable personal rule in the mature phase. Fast decision-making can turn into silence, exclusion of objections, rule by fear, and formal approval.
At that point, the existence of institutions does not prove that the organization is healthy.
There may be meetings.
There may be approval procedures.
There may be audits.
There may be personnel systems.
There may be consultation channels.
But if these systems do not function as correction, oversight, and real approval, they are already hollow.
In a modern organization, regime change does not always mean replacing the top leader or changing all institutions. It means redistributing Control Variables.
Who is responsible for Strategic Awareness (A)?
Who protects Information Flow Architecture (IA)?
Who operates Human Resource Governance (H) fairly?
Who maintains Decision-Criteria Validity (V)?
Who corrects, who oversees, and who approves?
If these questions are not redesigned, the organization may collapse while still keeping its institutional form.
The fall of the Roman monarchy shows a general principle. A system collapses not only when institutions disappear. It collapses when institutions lose their community purpose and begin to serve the self-preservation of the ruler or a small group.
8. Conclusion
The transition from monarchy to republic in Livy’s History of Rome, Book 1 is not merely the story of the expulsion of a tyrant.
It is the story of an OS that was effective for the formation, integration, and institutionalization of Rome, but later ceased to function as a device for preserving the community.
Regime change is not simply the choice of an ideal system. It is a limit reaction. It occurs when the existing OS can no longer recover itself and the community judges that it cannot survive as it is.
In the final phase of the Roman monarchy, royal power was used not for the community, but for the self-preservation of the royal family. Institutions such as the Senate, the assembly, the army, and command authority still existed. But they moved toward fear-based rule and private domination rather than correction and oversight.
The Lucretia incident made this crisis visible. The crime of the royal family was recognized as a danger of the monarchy OS itself. Through the action of Brutus, the rejection of royal monopoly became a political movement.
However, Rome did not abandon command authority itself. It redistributed the command authority that had been concentrated in one king into the consulship, assemblies, records, and institutions.
This is the essence of regime change.
Regime change is not destruction.
It is the redistribution of Control Variables.
It is the movement from an old OS that has begun to destroy the community to a new OS that can preserve it.
In this sense, the end of the Roman monarchy was not simply a record of failure. It was a record of a community rewriting its OS in order to survive.
9. Source Texts
Titus Livius, History of Rome, Book 1, translated into Japanese by Satoshi Iwatani, Kyoto University Press, 2008.
OS Organizational Design Theory_R1.30.19.02.