Definition
Primo gradu is a Latin phrase meaning "of the first rank" or "of the first degree." In English legal history, it refers specifically to the senior clerks of the Court of Chancery — officials who held the highest clerical rank within that court and served as assistants to the Lord Chancellor in the drafting and issuance of writs. These clerks were formally designated as collaterales et socii cancellarii (associates and colleagues of the chancellor) and exercised significant quasi-judicial and administrative functions, particularly in fashioning new writs in cases analogous to existing ones — the procedure known as in consimili casu. Over time, the clerks primo gradu evolved institutionally into what became known as the Masters in Chancery.
Why It Matters in Research
This term appears almost exclusively in historical sources dealing with the medieval and early modern Court of Chancery. Researchers working with equity jurisprudence, the history of English writ practice, or the development of chancery procedure will encounter it in connection with the administrative hierarchy of the pre-reform Chancery. The key navigational point is that primo gradu is a descriptor of institutional rank, not a substantive legal doctrine — it tells you who these clerks were, not what the law required.
The term becomes significant in tracing the institutional genealogy of the Masters in Chancery, a body that wielded considerable procedural authority in equity practice well into the nineteenth century. Understanding that the Masters descended from the clerks primo gradu helps researchers contextualize the scope of their delegated powers and the origins of their role in supervising accounts, taking evidence, and advising the court.
Researchers using Crabb's History of English Law or Reeves's History of English Law — the sources cited in Burrill — will find fuller treatment of the clerks' functions in the formative period of chancery. These sources are essential for anyone working on the pre-Tudor equity court. The term itself rarely appears in case law or statutes; it surfaces primarily in legal historical writing and Latin administrative records.
Historical Dictionary Support
Burrill's Law Dictionary provides the sole significant dictionary treatment of this term. Burrill identifies the clerks primo gradu as both the highest-ranking Chancery clerks and the institutional predecessors of the Masters in Chancery, drawing directly on Crabb and Reeves for support. The entry is concise but accurate in its historical framing.
No other standard historical law dictionaries in the Law Mind corpus — including Jacob's Law Dictionary or Tomlin's Law Dictionary — appear to carry a dedicated entry for primo gradu, which reflects the term's specialized and archival character. The phrase appears to have passed out of active legal usage as the Chancery reformed and the Masters in Chancery were themselves abolished by the mid-nineteenth century in England.
What historical sources collectively underscore is the hierarchical structure of the medieval Chancery clerks, within which primo gradu marked the apex. The framing of writs in consimili casu — an important mechanism for the extension of common law remedies — was among the most consequential functions these clerks performed, giving the term a connection to substantive legal history that extends beyond mere administrative rank.
Jurisdictional Note
This term is specific to English legal history and has no independent doctrinal significance in American or Commonwealth jurisdictions. American courts never adopted the Chancery clerk hierarchy in this form, though equity practice borrowed extensively from English chancery procedure.