Definition
The Lex Cornelia de Edictis was a Roman statute, attributed to the dictator Lucius Cornelius Sulla (circa 67 B.C.), that bound a praetor to the edict he published at the beginning of his term of office. Before this law, praetors could issue, modify, or depart from their edicts at will during their tenure, creating unpredictability in the administration of private law. The Lex Cornelia closed that discretion: the edict announced at the outset became the praetor's binding legal framework for the duration of his year in office. It did not prevent future praetors from adopting different rules, but it locked any individual praetor into his own published commitments.
Why It Matters in Research
This statute is a critical structural milestone in the development of Roman private law, and researchers working in Roman legal history, civil law foundations, or comparative law will encounter it repeatedly in two distinct contexts.
First, it explains the mechanism by which the praetorian edict became a stable, cumulative body of law over time. Because each praetor was bound to his own edict, successful edicts were retained and refined by successive magistrates rather than abandoned mid-year for tactical reasons. This accretion process eventually produced the Edictum Perpetuum, the consolidated edict later organized under Hadrian by the jurist Julian in the second century A.D. Researchers who encounter references to the perpetual edict in civil law sources should understand the Lex Cornelia de Edictis as a foundational precursor: the perpetuity of the Hadrianic edict was a product of imperial consolidation, but the institutional habit of edict-stability that made it possible was created by this Sullan legislation.
Second, the term appears as a cross-reference marker in sources dealing with the broader Sullan legislative program. Sulla's reforms touched criminal procedure (see Lex Cornelia de Sicariis et Veneficis), court organization, and the structure of the magistracy. Researchers using Bouvier's or Sohm's Roman Law as navigational tools should be alert to the fact that the "Lex Cornelia" label attaches to multiple distinct statutes. Conflating them is a common error in secondary literature and in older legal dictionary entries that aggregate Sullan reforms without distinguishing subject matter.
The corpus contains limited primary Roman source material for this specific statute, which means researchers relying on Law Mind sources will be working primarily through the interpretive layer of Sohm, Bouvier, and comparative civil law commentators. This is appropriate for understanding the statute's doctrinal significance but insufficient for reconstructing its precise text or original scope.
Historical Dictionary Support
Bouvier's sole entry for this term is brief and derivative, pointing directly to Sohm's Roman Law (§ 51) for substance rather than offering independent analysis. Bouvier correctly identifies the core function — binding the praetor to his opening edict — and cross-references the entry for PRÆTOR, suggesting the reader approach this statute as part of the larger magistracy framework rather than as an isolated rule.
Sohm's treatment, which Bouvier incorporates by reference, situates the Lex Cornelia de Edictis as the mechanism that transformed the praetor's edict from an ad hoc instrument of individual discretion into a predictable source of law. This framing has been broadly accepted in civil law historiography. The historical dictionaries do not engage with scholarly disputes about the statute's precise date or authorship, both of which remain subjects of academic discussion in Romanist scholarship outside the Law Mind corpus. Researchers should treat the attribution to Sulla and the approximate date as well-established working assumptions rather than settled certainties.
No meaningful divergence exists among the shelf sources on this term, which is unsurprising given the thinness of the historical dictionary coverage: there is effectively only one entry and it defers to a single external authority.
Jurisdictional Note
This is a historical Roman law term with no direct application in any modern jurisdiction. Its relevance in contemporary legal research arises in civil law systems that trace their doctrinal foundations through Roman sources, comparative law scholarship, and historical analysis of praetorian equity. Common law researchers will encounter it primarily in treatments of the civil law tradition.