Definition
A Latin place-name designation meaning "New Castle upon the Tyne," referring to the English town of Newcastle-upon-Tyne in Northumberland (now Tyne and Wear). The term appears in medieval legal records, particularly Exchequer memoranda and royal writs, as the formal Latinized designation for the borough. Its legal significance is purely locatory: the name identifies the jurisdictional seat, the party to a proceeding, or the geographic origin of a document rather than expressing any substantive legal concept.
Why It Matters in Research
Researchers working in medieval English legal records — particularly Exchequer rolls, plea rolls, and royal writs from the thirteenth through fifteenth centuries — will encounter this term as a jurisdictional identifier, not as a term of art. The practical research challenge is recognition: without familiarity with the Latin place-name convention, the term reads as an unfamiliar legal phrase when it is simply a geographic label.
Two navigation points matter here:
First, Latin place-name conventions were standard in English legal administration through the medieval and early modern periods. English boroughs, counties, and ecclesiastical seats routinely appear in their Latinized forms in chancery, exchequer, and ecclesiastical records. Newcastle-upon-Tyne is among the more frequently encountered because of the town's commercial and administrative importance in the north of England. Researchers should build familiarity with the parallel conventions — NOVUM FORUM (Newmarket in Suffolk, per Burrill) follows the same pattern and appears in the same class of records.
Second, the Exchequer memoranda citation in Burrill — Mem. in Scacc. H. 18 Edw. I — places the term in the reign of Edward I, specifically a Hilary term Exchequer memorandum. Researchers tracing northern English borough records, customs disputes, wool trade administration, or northern military provisioning from that period should expect this designation and its abbreviated forms. Variant spellings and partial contractions appear across manuscript traditions, and indexing in printed calendars may list the entry under the English name while the original record uses the Latin form.
No substantive legal doctrine turns on this term. Its value to the Law Mind researcher is entirely paleographic and navigational.
Historical Dictionary Support
Burrill's Law Dictionary treats NOVUM CASTRUM SUPER TINAM briefly, giving only the English equivalent (Newcastle-upon-Tyne) and the Exchequer memorandum citation as authority. The entry immediately follows a notation for NOVUM FORUM (Newmarket in Suffolk), signaling that Burrill organized these entries as a practical glossary of Latin place-name designations for the working legal researcher — a reference function that has since been largely absorbed by published calendars and diplomatic glossaries.
No substantive divergence exists across the historical dictionary record on this term because there is no legal doctrine to dispute. The dictionaries agree on what the term means; they differ only in how much documentary context they provide. Burrill's citation to the Exchequer memorandum is the most useful anchor for independent verification.
Jurisdictional Note
The term is specific to English legal records. It has no counterpart in Scottish, Welsh, or Irish legal Latin, which developed parallel but distinct place-name conventions. Researchers working in post-Conquest Anglo-Norman records should distinguish between Latin designations (NOVUM CASTRUM) and Old French equivalents (Neof Castel, Nouvel Chastel) that may appear in the same documentary tradition.