Definition
A royal crusading voyage or expedition to the Holy Land undertaken personally by the kings of England. The term is Latin, meaning literally "the king's passage" or "the king's crossing." It denoted a formally recognized category of royal military-religious undertaking distinct from general crusading activity, specifically requiring the personal participation of the English monarch rather than a deputized force or financially supported campaign. In medieval English law and administration, the passagium regis carried legal and fiscal consequences: the king's departure on crusade triggered specific obligations, protections, and privileges both for the crown and for those who accompanied it.
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Why It Matters in Research
This term belongs to a narrow but important cluster of medieval public law concepts tied to crusading taxation, royal prerogative, and feudal obligation. Researchers encountering it should be alert to several considerations.
First, the term appears almost exclusively in medieval and early modern sources. It is essentially absent from post-Reformation English legal literature as an operative legal concept, though it survives in historical and antiquarian treatments of medieval constitutional law. Do not expect to find it in case law or statutory material from the seventeenth century onward except as a historical reference.
Second, the fiscal dimension is significant for corpus researchers working in medieval administrative records. The passagium regis justified extraordinary taxation and the collection of crusading tenths and subsidies. Records associated with a passagium regis — papal bulls authorizing taxation, exchequer accounts, letters patent — may appear under administrative or ecclesiastical headings rather than under the term itself.
Third, the concept intersects with the law of royal absence. When an English king departed on a passagium regis, governance arrangements, judicial continuity, and debt obligations were directly affected. Researchers tracing developments in regency law, the law of royal incapacity, or the administration of justice during the reigns of Richard I, Edward I, and Louis IX (in French parallel sources) will find the passagium regis a relevant background concept.
Fourth, the Cowell attribution appearing uniformly across all three source dictionaries signals that the legal lexicographic tradition here is thin — all three dictionaries are drawing from John Cowell's Interpreter (1607) rather than from independent English case law or treatise development. The term entered the legal dictionary tradition as a historical curiosity, not as a living legal concept.
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Historical Dictionary Support
Black's Law Dictionary (both editions) and Bouvier's Law Dictionary reproduce the definition identically, word for word, and all three attribute the entry solely to Cowell. This unanimity signals not independent corroboration but a shared single source. The definition is accurate as far as it goes, but it is notably spare. None of the three dictionaries engages with the fiscal or administrative legal consequences of a passagium regis, the distinction between a passagium regis and a passagium generale (a general crusading passage open to all participants), or the legal mechanisms by which the king's personal crusade vow created obligations under both canon and common law.
Cowell himself, writing in 1607, was already treating the term as an artifact of medieval history rather than as an operative legal concept. The historical dictionaries thus preserve the definition accurately but fail to capture the term's full significance in the medieval administrative and constitutional context where it actually functioned.
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Jurisdictional Note
The term is specific to medieval English royal law and has no direct parallel in contemporary common law jurisdictions. Its closest analogues in other medieval legal systems are the French passagium outremer and related crusading legislation under canon law, which were pan-European in scope but operated through different administrative structures.
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