Definition
Parliamentum indoctum (Latin: "unlearned parliament") is a historical designation for the English parliament convened at Coventry in the sixth year of Henry IV (1404), assembled under an ordinance that prohibited lawyers from being elected as knights of the shire, citizens, or burgesses. The exclusion of legally trained members from the body gave rise to its informal name. Sir Edward Coke recorded the outcome in his Institutes: the parliament was "fruitless, and never a good law made thereat." The episode became a fixture in common law commentary as evidence of the practical indispensability of legal expertise to effective legislation.
The term has no ongoing operational meaning in modern law. It survives exclusively as a historical reference point in constitutional and parliamentary history.
Common Confusion
The term is occasionally misread as a general descriptor for any parliament lacking legal sophistication. It is not. Parliamentum indoctum refers to one specific, historically identified assembly. It should not be applied loosely to other legislative bodies or historical sessions, however unproductive their records may appear.
Why It Matters in Research
Researchers will encounter this term almost exclusively in one of three contexts: (1) commentary on the role of lawyers in legislative bodies, tracing back to Coke and Blackstone; (2) constitutional history discussions about parliamentary composition and qualification requirements; and (3) as an illustrative example in treatises arguing for or against professional legal participation in deliberative assemblies.
The primary citation trail runs through Coke's Fourth Institute at page 48 and Blackstone's Commentaries at volume 1, page 177. Both are canonical texts in the Law Mind corpus, and both cite the episode approvingly to underscore the value of legally trained legislators. Researchers working backward from nineteenth-century American constitutional commentary may find this term appearing in arguments about bar membership, legislative qualification, or separation of powers, where it functions as a cautionary precedent rather than binding authority.
Bouvier's citation to Walsingham and the Rotuli Parliamentorum (Rot. Parl. 6 Hen. IV) points to primary parliamentary records for researchers needing the original source rather than the common law gloss. Note that Burrill's entry as reproduced here is fragmentary, apparently interrupted mid-sentence; researchers relying on Burrill should consult the physical volume to verify the complete entry, as the text appears to have suffered a transcription break conflating material from a separate entry on trial by jury.
One research trap: the date. The parliament is described as held in the sixth year of Henry IV, which corresponds to 1404-1405. Some secondary sources round this loosely, and the precise regnal year matters if cross-referencing against parliamentary rolls or chronicle sources.
Historical Dictionary Support
All three source dictionaries agree on the core facts: Coventry, Henry IV's sixth regnal year, the exclusion of lawyers, and the parliament's infertility as a legislative body. Black's and Burrill's both quote or closely paraphrase Coke's memorable judgment — "fruitless, and never a good law made thereat" — making Coke the authoritative evaluator of record in the common law tradition.
Bouvier's is the most source-rich of the three, citing Walsingham's chronicle and the Rotuli Parliamentorum alongside the standard Coke and Blackstone references, which gives researchers additional primary-source footholds. Black's and Burrill's are more compressed and derivative of the same Coke-Blackstone axis.
None of the three dictionaries attempts any modern legal application, which is appropriate. This is a term that had already become purely historical by the time these dictionaries were compiled. What historical sources collectively miss is any sustained analysis of whether the ordinance itself was effective, who enforced it, or how "lawyer" was defined for purposes of exclusion — questions that matter to constitutional historians but fell outside the scope of these reference works.
Jurisdictional Note
This term has no jurisdictional application in any modern legal system. It belongs to English constitutional history prior to the development of the modern parliamentary framework and has no counterpart in American, Commonwealth, or civil law traditions.