Definition
De libero passagio (Latin: "of free passage") is a common law writ commanding that a person be permitted free passage over land or through a way to which the claimant asserts a right. It belongs to the family of writs known as quod permittat — writs directing a defendant to allow the plaintiff to exercise a right rather than to recover land or damages directly. In practice, de libero passagio functioned as the procedural vehicle for enforcing a right of way or similar passage right against a party who obstructed or denied it.
---
Why It Matters in Research
This is a term of narrow historical application. Researchers will encounter it almost exclusively in pre-modern English common law materials — writs registers, early pleading manuals, and treatises on real actions — rather than in modern case law or statutes. Its significance in a research corpus lies primarily in what it reveals about the procedural architecture of medieval and early modern English law: specifically, the system of enumerated original writs that defined what rights were judicially cognizable.
The practical right underlying the writ — a right of free passage — survived in substance long after the writ form itself fell into disuse. Researchers tracing the legal history of easements, rights of way, or access rights should treat de libero passagio as an early procedural ancestor rather than a continuing cause of action. The writ form became obsolete with the abolition of the forms of action in England under the Common Law Procedure Acts of the nineteenth century, and it had no meaningful transplant into American practice.
A key navigational trap: the term appears in the Registrum Omnium Brevium (Reg. Orig.), the official register of original writs, where citation to folio 155 is the standard reference in the historical dictionaries. Researchers using older legal dictionaries or digests that cite "Reg. Orig. 155" should understand this as a reference to that printed register, not to a case report.
---
Historical Dictionary Support
Both Black's Law Dictionary (1st and 2nd editions) provide identical entries, defining de libero passagio as a "writ of free passage" and classifying it as "a species of quod permittat," with citation to Reg. Orig. 155. The entries are minimal — a single sentence each — reflecting the writ's status as a historical curiosity by the time Black's was compiled in the late nineteenth century rather than a term of active legal significance.
Neither edition elaborates on the procedural mechanics of the writ, the grounds required to obtain it, or its relationship to contemporaneous actions for obstruction of ways. This silence is typical of Black's treatment of obsolete Latin writ forms: the entry preserves the classification and the register citation without attempting practical instruction. Researchers seeking fuller treatment should consult Fitzherbert's Natura Brevium or Comyns' Digest, which give more developed accounts of the quod permittat family of writs and the rights they enforced.
The consistent characterization of de libero passagio as a "species of quod permittat" across both editions is editorially significant: it correctly situates the writ within the broader category of writs commanding permission rather than writs of entry or possessory assizes, and it signals that the underlying theory was one of right rather than possession.
---
Jurisdictional Note
De libero passagio is exclusively an English common law writ and has no recognized counterpart in American, Scottish, or civil law systems. American courts resolved disputes over rights of passage through equity, trespass, and later through statutory easement law, never adopting the writ form.
---