Aulus Ofilius systematically arranged and commented on the Praetor's Edict, expanding significantly on the more fragmented, topical legal observations left by his teacher, Servius Sulpicius Rufus. [1, 2, 3]

Regarding your second question: No, the praetor's edict did not first become law under Augustus, though its nature shifted permanently during the imperial era. [1]

How Ofilius Improved on Sulpicius Rufus

In the late Roman Republic (1st century BCE), Servius Sulpicius Rufus was a towering legal mind who wrote numerous short, unorganized treatises and critiques on specific legal points. His student, Aulus Ofilius, took Roman jurisprudence to the next level in two major ways: [1, 2, 3, 4, 5]

• First Comprehensive Commentary: Ofilius was the very first Roman jurist to write a massive, comprehensive, and ordered commentary on the entire Edictum Praetoris (Praetor's Edict). Sulpicius had only written brief, scattered notes on it. [1]
• Structural Codification: Working closely with Julius Caesar on a planned (but unfulfilled) project to codify all Roman civil law, Ofilius took the messy, evolving formulas of the praetors and organized them into a structured, highly accessible legal framework. [1]

Did the Praetor's Edict Become Law Only Under Augustus?

No, the Praetor's Edict already held the functional power of law during the Republic, long before Augustus.[1, 2]

• The Republican Era: While a praetor's edict was technically an annual announcement of how they intended to administer justice rather than a permanent statute (lex), it effectively dictated the law for that year. In 67 BCE (via the Lex Cornelia de iurisdictione), praetors were legally forced to stick strictly to their own published edicts, giving them stable legal permanence. [1, 2, 3]
• The Change Under Augustus: Augustus did not turn the edict into law. Instead, he began to strip the praetors of their independent legislative creativity. Because Augustus controlled the state, praetors stopped introducing radical legal innovations and instead copied the previous year's edict verbatim. [1, 2, 3]
• The Final Freeze: The formal codification of praetorian law did not happen under Augustus, but rather under Emperor Hadrian in the 2nd century CE. Hadrian tasked the jurist Salvius Julianus with finalizing the Edictum Perpetuum (Perpetual Edict), freezing the text permanently so it could no longer be changed by yearly praetors. [1, 2]

If you are researching specific Roman legal developments, I can provide more details if you specify:

• If you are focusing on the law of legacies or property.
• Whether you want to explore the procedural differences between the praetor urbanus and praetor peregrinus.
• A specific Lex Iulia passed during the reign of Augustus. [1, 2, 3, 4]

Le risposte dell'AI potrebbero contenere errori. Per una consulenza legale, rivolgiti a un professionista. Scopri di più

and twentieth vicesima tax?

The Latin word "vicesima" means "one-twentieth", representing a 5% tax rate in the Roman legal and fiscal system. [1, 2, 3]

While you are focusing on the era of Augustus and the early Empire, there were actually two critical "vicesima" taxes that dictated Roman history: [1, 2]

1. Vicesima Hereditatium (The Inheritance Tax)

This is the famous tax introduced directly by Emperor Augustus in 6 CE through the Lex Julia de vicesima hereditatium. [1, 2]

• The Purpose: Augustus needed a permanent, reliable stream of revenue to fund the newly created aerarium militare (military treasury). This fund paid out cash pensions and land bounties to retiring Roman legion veterans so they would remain loyal to the emperor rather than individual generals. [1]
• Who Paid It: It applied only to Roman citizens inheriting property through a will (testamentum). [1, 2]
• The Exemptions: To avoid severe political backlash from the elite, Augustus exempted close, direct relatives—such as parents, grandparents, children, grandchildren, and siblings. It mostly targeted larger estates left to distant relatives, friends, or strangers. Small estates below a certain value threshold were also exempt. [1, 2, 3]

2. Vicesima Libertatis / Manumissionum (The Freedom Tax)

This was an much older tax, originating during the Roman Republic in 357 BCE. [1]

• The Mechanism: It was a 5% tax levied on the market value of a slave whenever they were legally freed (manumitted). [1, 2]
• Who Paid It: It was paid either by the master granting the freedom, or by the slave themselves out of their personal savings (peculium) to secure their release. [1, 2]
• The Emergency Fund: During the Republic, the money collected from this tax went into a special reserve treasury (aerarium sanctius) reserved strictly for extreme state emergencies—such as funding the war against Hannibal in 209 BCE. Augustus maintained this tax as part of his wider efforts to regulate and slow down mass manumissions. [1, 3]

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If you want to dive deeper into how Augustus structured the imperial economy, tell me if you want to explore:

• The protests and political pushback Augustus faced from the Senate when introducing the inheritance tax.
• Other Augustan taxes, like the centesima rerum venalium (a 1% auction/sales tax).
• How freedmen status changed legally under Augustan social legislation (like the Lex Aelia Sentia). [1, 2, 3, 4, 5]

Is ofilius related to this in digestum?

Yes, Aulus Ofilius is explicitly linked to the 5% tax in the Digestum (Digest). In fact, he plays a crucial pioneering role regarding it. [1, 2, 3]

The Digest explicitly highlights Ofilius's connection to the "vicesima" law and his broader presence in Roman jurisprudence through several key points: [1, 2]

1. The Pioneer of the "Vicesima" Clauses

In the historical overview of Roman legal experts found in Book 1 of the Digest (Dig. 1.2.2.44), the text explicitly records that Aulus Ofilius—a close personal friend of Julius Caesar—was the very first Roman jurist to write an extensive analysis of the clauses governing the "twentieth" (de legibus vicesimae). [1, 2]

While Augustus officially codified the massive 5% inheritance tax (vicesima hereditatium) in 6 CE, Ofilius's earlier Republican-era writings laid the precise analytical and legal groundwork for how 5% tax clauses were structurally interpreted by Roman courts. [1]

2. Citations on the Praetor's Edict

Because Ofilius wrote the first massive, comprehensive commentary on the Praetor's Edict, later classical jurists heavily relied on him. The Digest is fundamentally a compilation of those later jurists (like Ulpian and Paul), meaning Ofilius is frequently cited as the bedrock authority throughout the text. [1, 2, 3]

• For example, in Dig. 2.7.2, the jurist Paul relies directly on Ofilius's earlier legal opinions to define the strict limits of summoning a parent or patron to court under the Praetor's Edict. [1]

3. Practical Legal Definitions (Fulfilling the Edict)

Beyond major taxes and edicts, the Digest preserves highly specific, practical examples of Ofilius's jurisprudence. In Dig. 21.1.1.9, Ulpian quotes Ofilius regarding the legal health of property sold under praetorian rules: Ofilius had cleverly applied his legal definitions of "defective horses" to rule that a slave whose tongue had been cut out was legally "unhealthy" and thus a defective sale. [1]

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If you are exploring the legal fragments preserved in Justinian's collection, please let me know if you would like to:

• Look up a specific Book or Chapter within the Digestum.
• See how other Republican jurists, like Alfenus Varus, compare to Ofilius in the text.
• Analyze the Latin phrasing of Dig. 1.2.2.44 regarding Ofilius. [1]