Definition
Antiqua custuma (Latin: "ancient custom") refers to a medieval English export duty levied on wool, wool-felts, and leather, first imposed during the reign of Edward I (1272–1307). The term distinguishes this original duty from the custuma nova — a later, higher duty on the same goods charged specifically to foreign merchants — which was introduced later in the same reign. Together, the two duties formed the foundational structure of England's early customs revenue system on staple export commodities.
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Why It Matters in Research
This is a term of medieval English fiscal and commercial law with essentially no modern operational significance. Researchers encounter it almost exclusively in three contexts:
1. Historical customs and revenue law. When tracing the origins of English customs administration — including the wool staple, early parliamentary taxation, and the development of Crown prerogative over trade — the antiqua custuma is a primary reference point. Understanding its distinction from the custuma nova is essential to correctly interpreting medieval exchequer records and fiscal chronicles.
2. Blackstone's Commentaries research. Both historical dictionary entries cite 1 Bl. Comm. 314, making Blackstone the standard secondary source. Researchers working through Commentaries on the Laws of England for customs history will encounter the term in that specific passage and should be alert to Blackstone's framing, which treats the antiqua custuma as foundational to English commercial law without fully elaborating on its administrative mechanics.
3. Corpus navigation. The term appears in Law Mind sources almost entirely in definitional or historical survey contexts rather than in case law or statute collections. Researchers should not expect doctrinal application; the term is a historical marker, not a living legal concept.
No significant jurisdictional variation applies — this is a purely historical English term with no transplant into American, Commonwealth, or civil law traditions.
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Historical Dictionary Support
Both Black's Law Dictionary editions (1st and 2nd) present essentially identical entries, differing only in a minor typographical variation ("same articles" vs. "game articles" in the 2nd edition — the latter is a print error). The substantive definition is stable across both: an export duty on wool, wool-felts, and leather, named "ancient custom" to distinguish it from the later custuma nova applicable to foreign merchants.
Neither edition elaborates on the administrative structure of the duty, the rates imposed, the mechanisms of collection, or the parliamentary history surrounding its imposition. Blackstone (1 Bl. Comm. 314), the sole cited authority, provides somewhat more context but remains at a high level of generality. Researchers requiring depth on Edward I's customs regime — including the role of the Statute of Acton Burnell (1283) or the Carta Mercatoria (1303) in structuring merchant duties — will need to go beyond the dictionary sources entirely and consult specialized economic and legal histories of medieval England.
The historical dictionaries do not address the relationship between the antiqua custuma and parliamentary consent, a point of some historical controversy: the duty's imposition raised early questions about Crown authority to tax trade without parliamentary approval, questions that echo forward into constitutional conflicts of the following centuries.
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