Definition
De fontibus (Latin: "concerning sources" or "of the springs/fountains") is a historical legal designation appearing in early English common law records, principally in connection with pleadings or proceedings in the Exchequer. The phrase functions as a descriptive title or heading for a class of matter dealt with in that court, most likely relating to disputes over water sources, springs, or watercourses — resources that carried significant legal and economic weight in medieval England. Because the term appears primarily as a case or record heading rather than as a defined legal concept with standalone doctrine, its meaning is largely contextual and archival.
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Why It Matters in Research
This term is nearly exclusively a paleographic and archival research concern rather than a doctrinal one. Researchers encountering "de fontibus" will most likely find it as a Latin heading or label on a medieval Exchequer roll, plea roll, or related chancery document rather than as a term of art developed through judicial reasoning.
The single source citation from Burrill — "Wells. Mem. in Scacc. M. 2 & 3 Edw. I." — directs researchers to Exchequer memoranda from the reign of Edward I (approximately 1274–1275), a period when Latin record-keeping was standard and case headings were often derived from the subject matter of the dispute rather than from any formal legal category. "In Scacc." (in Scaccario, meaning "in the Exchequer") signals that this is Exchequer business, not common pleas or King's Bench.
Key navigational considerations:
First, do not conflate this term with developed doctrines of riparian rights or water law as they appear in later English or American case law. "De fontibus" as a record heading does not carry the doctrinal weight of those later frameworks.
Second, researchers working in the Law Mind corpus who encounter de fontibus should cross-reference it against related Latin headings used in early Exchequer rolls — such as de stagnis (concerning pools), de aquis (concerning waters), or de molendinis (concerning mills) — which cluster around disputes over the same category of physical resources.
Third, the term has no meaningful presence in post-medieval legal writing. It does not appear in Blackstone, Coke, or standard treatises on English property or water law. If a researcher finds a modern citation to de fontibus, it is almost certainly a direct quotation from a medieval source, not a living legal term.
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Historical Dictionary Support
Burrill's Law Dictionary is the sole source in the Law Mind shelf to record this term, and its entry is minimal — providing only the archival citation without elaborating on doctrinal content. This brevity is itself informative: Burrill includes the term as a record label rather than as a legal concept meriting definition. The citation to "Wells. Mem. in Scacc." refers to Samuel Wells's work on Exchequer memoranda, a specialized antiquarian and legal-historical source concerning thirteenth-century Exchequer proceedings.
No other major historical dictionaries in the Law Mind corpus — not Bouvier, not Black's early editions — appear to carry an entry for de fontibus, which underscores its character as a purely archival term of limited doctrinal significance. Researchers should treat Burrill's inclusion as a pointer to a class of medieval record rather than as evidence that the phrase ever functioned as a cause of action, defense, or legal standard.
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Jurisdictional Note
This term is specific to the English common law tradition and its medieval record-keeping practices. It has no recognized presence in American, Scottish, or continental legal systems as a distinct legal term.
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