Definition
Latin. "Ordinary judges." In Roman civil law, the body of common judges appointed to hear and determine causes — distinguished from the magistrates who held broader jurisdictional and administrative authority. According to Blackstone's account, the judices ordinarii were confined to questions of fact, while questions of law were resolved by the praetor or other magistrates. The term is plural; the singular is judex ordinarius.
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Common Confusion
JUDICES ORDINARII should not be confused with the praetor or other Roman magistrates who presided over the preliminary stages of litigation. In the Roman formulary system, the praetor framed the legal issue (the formula) and referred it to a judex for factual determination — meaning the judices ordinarii functioned more like a modern jury or referee than a judge in the common law sense. Researchers approaching this term through a common law lens risk overstating the judicial authority these figures held.
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Why It Matters in Research
This is a term of Roman civil law that surfaces almost exclusively in historical legal texts, comparative law discussions, and common law scholarship that traces the distinction between law and fact to Roman origins. Its primary appearance in Anglo-American sources is through Blackstone's Commentaries (3 Bl. Comm. 315), which all four source dictionaries cite as the authoritative relay point — meaning the term entered English legal dictionaries filtered through Blackstone's interpretation of Roman procedure, not through direct engagement with Roman sources.
Researchers should be alert to two specific traps. First, Blackstone's characterization that these judges "determined only questions of fact" reflects his particular reading of the Roman formulary system and should not be treated as an uncontested description of Roman law. Roman procedure was more varied, and the role of the judex shifted across different periods and procedural systems (legis actiones, formulary, cognitio). Second, because the term appears in American legal dictionaries largely by inheritance from Blackstone, later dictionary entries are essentially copies of the same passage and add no independent scholarly weight — Burrill's entry appears to be a truncated version of the same formulation.
For corpus researchers: if this term appears in a 19th-century American legal text, it almost certainly signals engagement with Roman law as a comparative or foundational reference, not as operative authority. It connects naturally to broader discussions of the law-fact distinction, the role of the jury, and the development of equity jurisdiction.
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Historical Dictionary Support
All four source dictionaries converge on essentially the same definition, all tracing to the identical passage in Blackstone. Black's (1st and 2nd editions) provide identical text verbatim. Burrill's entry appears incomplete in the available source, cutting off mid-sentence, but the opening language tracks Black's precisely. Rapalje & Lawrence is the most economical — "Ordinary judges. See JUDEX ORDINARIUS" — redirecting to the singular form rather than elaborating independently.
No source dictionary engages critically with Blackstone's characterization or situates the term within the broader arc of Roman procedural history. This is a consistent gap across the shelf: the dictionaries transmit Blackstone's gloss without interrogating it. Researchers seeking a more rigorous account of what the judices ordinarii actually did in Roman practice will need to go beyond these dictionary sources to Roman law scholarship directly.
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Jurisdictional Note
This term has no operative jurisdiction in any modern legal system. It is a historical and comparative term only, relevant to Roman law scholarship and to Anglo-American legal history insofar as Blackstone incorporated it into his account of the origins of the law-fact distinction.
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