Which Byzantine Emperor Collected The Laws Of Ancient Rome

The ancient laws of Rome, which governed a wide range of aspects of public and private life in the Italian peninsula for centuries, were collected and codified by the Byzantine Emperor Justinian I. Justinian I was the Eastern Roman Emperor between 527 and 565, ruling much of the Mediterranean world and North Africa. This article examines Justinian’s legal reforms and their effects, exploring the changes that occurred in the Roman system of law under his leadership.

Background on Roman Law

Before the reign of Justinian I, legal authority in the Roman Empire stemmed primarily from the Twelve Tables. The Twelve Tables was the earliest recorded codification of Roman law, initially written during the fifth century BC and later revised by the Roman Senate. These laws were compiled into a comprehensive code of law which was known as the Corpus Juris Civilis, or “Body of Civil Law.”

This law was not completely uniform throughout the Roman Empire, as it was frequently modified to fit the particular needs of the various peoples in different areas of the empire. Despite these local interpretations, the Corpus Juris Civilis still formed the basis for the legal systems of many European nations, including Italy and its satellites, for centuries to come.

Legal Reforms of Justinian I

Justinian I inherited a legal system in the Eastern Roman Empire that was in need of reform. The many local interpretations of the Roman law had led to inconsistencies in legal sentencing and disputes between different regions of the empire. To address these issues, Justinian I launched a comprehensive effort to restructure and codify Roman law across the entire empire.

Justinian began by issuing a series of laws known as the Codex Justinianus. This overhaul of the Roman law system addressed a variety of issues, from criminal justice to trade to civil law. By unifying Roman law under a common set of regulations, Justinian hoped to make the law more consistent and simpler to understand. He also created a new system of legal procedure known as the Justinian Code, which sought to reduce the backlog of court cases that had been accumulating.

Effects of Justinian’s Legal System

Justinian’s reforms had a profound effect on Roman law. The flaws in the existing legal system were addressed, making the system more consistent and understandable. Justinian also laid the foundations for many of the legal systems that continue to be used today in countries such as Italy, Spain and parts of the Middle East. Furthermore, the Justinian Code provided the basis for civil law systems still used in many modern legal systems, such as France and Germany.

Aside from these practical reforms, Justinian’s legal reforms also had a significant impact on the philosophy and practice of law. Throughout his reign, Justinian sought to create a system of law that was accessible to all members of Roman society, regardless of social class or economic status. This emphasis on fairness and justice made Justinian’s laws a source of inspiration to later generations of legal theorists, who saw Justinian’s reforms as a symbol of progress and reform.

Controversy Surrounding Justinian’s Legal System

Justinian’s legal reforms were not without their critics. In addition to many of the practical reforms, Justinian also sought to reinforce the authority of the Emperor and the Church. This led to the suppression of certain ideas and practices that Justinian deemed to be “unorthodox,” leading to criticism from some intellectuals and religious groups.

In addition, some critics argued that the Justinian Code was too complex and difficult to understand for the average person. This complexity made it difficult for citizens to properly adhere to the law, as well as to defend themselves in court. Justinian’s reforms also did not address all aspects of Roman law, particularly those related to property rights and taxation. This left some areas of Roman law open to misinterpretation and exploitation by the wealthy and powerful.

Late Antique and Early Byzantine Legal Scholarship

Justinian was not the only Byzantine leader who was interested in legal reform. Late antique and early Byzantine legal scholarship, beginning with the Early Christian theologian John Chrysostom and continuing with later writers such as Basil the Great, Julian of Halicarnassus and Procopius of Caesarea, sought to clarify and codify Roman law. These legal scholars developed approaches to legal theory that sought to define the boundaries of what was permissible in Roman society, while still leaving room for debate and new interpretations.

This approach to legal scholarship helped to shape the nature of Roman legal thought for centuries to come. Justinian was inspired by this legal scholarship, and used the conclusions of these ancient legal scholars to inform his own reforms of the Roman legal system. The result was a legal system that was both unified and flexible, allowing Roman citizens to better understand their rights and responsibilities under the law.


The legal reforms of Justinian I played a major role in shaping the law in the Mediterranean world for centuries to come. His comprehensive overhaul of the legal system brought about much-needed consistency and clarity, making Roman law easier to understand and apply. The legacy of Justinian’s reforms can still be seen in many of the legal systems in place today. Furthermore, Justinian’s influence on early Byzantine legal scholarship helped to shape the legal philosophy of the Eastern Roman Empire for centuries to come.

Byzantine Rome’s Relations to Roman Law

Justinian’s reforms also transformed the relationship between former Roman provinces and the Byzantine Empire. By codifying Roman law and unifying the legal systems of the provinces under the new Codex Justinianus, Justinian ensured that the Eastern Roman Empire became the primary source of legal authority in the region. While provincial governments still had some local authority, the legal jurisdiction of the empire was now firmly established. This resulted in the provinces being ruled more like provinces of a unified empire rather than as separate entities, giving the Eastern Roman Empire a level of centralization that had not previously existed.

This centralization of authority had a profound effect on the development of the empire as a whole. By unifying the legal systems of the various provinces into a single authoritative source, Justinian helped to ensure that the Byzantine Empire was seen as a legitimate political entity on the world stage. His legal reforms were also instrumental in helping to protect and defend the interests of the citizens of the Eastern Roman Empire, giving them a more consistent level of rights and protections.

Continuing Impact of Justinian’s Legal System

The reforms put forward by Justinian I have had a major impact on world law in the centuries since his death. The framework of Justinian’s legal system, including his legal theory and the code of Roman law that he codified, continues to provide the basis for many of the legal systems in use today. Justinian’s reforms have shaped the way we think about law, giving us a better understanding of how a legal system can be made more just and equitable for all citizens.

Justinian continue to be seen as one of the most influential and progressive rulers in the history of Roman law. His reforms have had a lasting impact on the development of legal systems not just in the Mediterranean world, but throughout the world. As a result, Justinian will remain one of the most important figures in the history of Roman law for centuries to come.

Justinina I’s Period of Rule

Justinian’s period of rule, known as the Byzantine Renaissance, was a critical time period in the history of the Byzantine Empire, and of the Mediterranean world more generally. During this time period, the Byzantine Empire experienced a cultural and economic revival, and the Christian Church experienced a period of schism and turmoil. Justinian’s legal reforms were part of this period of revival, helping to bring about a new level of consistency and clarity to law in the region.

The revival of the Byzantine Empire during this period was bolstered by a vigorous diplomatic campaign, as well as a series of military victories that sought to reclaim land from the Sassanid Empire and other forces. Justinian’s legal reforms were also part of this larger effort to bring order and stability to the region, helping to ensure that the Byzantine Empire had the resources and stability necessary to move forward and flourish.

Significance of Justinian’s Legal System

Justinian’s legal reforms have had a lasting impact on the legal systems of not just the Eastern Roman Empire, but of the entire Mediterranean world. His codification of the Twelve Tables and his creation of the Justinian Code provided the foundations for modern civil law systems. The emphasis on fairness and justice that Justinian sought to bring to Roman law has served as a source of inspiration to legal scholars throughout the centuries.

Furthermore, Justinian’s legal reforms were part of an effort to centralize power in the Eastern Roman Empire. By codifying and unifying the law systems of the provinces, Justinian was able to give the emperor greater control over the fortunes of the empire as a whole. This resulted in the Byzantines becoming a more unified political entity, more capable of defending itself against external threats.

Justinina I’s Reception as a Reformer

Justinian’s legal reforms were generally well-received, and he is widely considered to be one of the most influential rulers of the Byzantine Empire. Justinian was seen not just as an effective ruler, but also as a pioneer of legal reform, helping to bring about a new level of consistency and clarity to Roman law across the entire region. Justinian was admired by generations of legal theorists, and was seen as a symbol of progress and reform.

Justinian’s legal reforms were also seen as evidence of his personal commitment to justice and fairness. Throughout his reign, Justinian sought to ensure that Roman law was accessible to all citizens, regardless of their class or economic status. Justinian’s commitment to justice and fairness inspired generations of legal scholars, and helped to shape the legal philosophy of the Late Antique world for centuries to come.

Moshe Rideout is a professional writer and historian whose work focuses on the history of Ancient Rome. Moshe is passionate about understanding the complexity of the Roman Empire, from its architecture to its literature, political systems to social structures. He has a Bachelor's degree in classic studies from Rutgers University and is currently pursuing a PhD in classical archaeology at UMass Amherst. When he isn't researching or writing, he enjoys exploring ruins around Europe, drawing inspiration from his travels.

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