Definition
A Latin phrase meaning, literally, "to crown one's son." In legal and ecclesiastical usage, coronare filium denoted the act of causing one's son to enter the first stage of holy orders by receiving the tonsure — a ceremonial cutting of hair in a circular crown-like pattern, symbolic of the corona or crown of thorns. This act marked the son's formal entry into the clerical state and placed him under the jurisdiction and protections of canon law rather than the secular common law. A man who had received the tonsure in this manner was called homo coronatus — a "crowned man" — signifying his newly acquired clerical status even before he advanced to full ordination.
Common Confusion
The term can mislead researchers unfamiliar with medieval ecclesiastical practice. "Coronare" in classical Latin relates broadly to crowning or adorning with a crown; in this context it carries the specialized ecclesiastical sense of the tonsure ritual, not any royal or secular coronation. The "filium" (son) element confirms the parental act of dedicating a child to the clergy, distinguishing this from the simple description of an individual receiving tonsure on his own initiative.
Why It Matters in Research
This term is of practical importance primarily in medieval English legal history, where the boundary between secular and ecclesiastical jurisdiction was fiercely contested. A son who had been coronatus held clerical status (benefit of clergy) and could claim exemption from trial in royal courts for certain offenses — a privilege with enormous procedural and penal consequences. Researchers working in:
— Plea rolls and Year Books from the twelfth through sixteenth centuries may encounter disputes about whether a defendant legitimately held clerical status, in which coronare filium or homo coronatus may appear as threshold questions of jurisdiction.
— Ecclesiastical court records (particularly those of bishops' registers) will use the tonsure and its administration as a formal documented act with legal consequence.
— Property and inheritance disputes sometimes turned on whether a son had entered holy orders, since clerical status affected capacity to hold certain tenures and inherit under common law rules.
Researchers should note that the practical significance of this act declined sharply after the Reformation in England, when benefit of clergy was progressively restricted by statute and eventually abolished. Sources from the sixteenth century onward will reference the term historically rather than as operative law. The tonsure as a legal marker effectively ceased to function in English common law by the seventeenth century, meaning the term appears almost exclusively in pre-modern records and in later dictionaries glossing medieval practice.
Historical Dictionary Support
Both Black's Law Dictionary and Rapalje & Lawrence give substantially identical entries, each tracing the definition back to John Cowell's Interpreter (1607), the foundational English law dictionary that drew heavily on canon law and civil law sources. This shared derivation from Cowell is significant: neither Black's nor Rapalje & Lawrence appears to have independently researched the term beyond Cowell's gloss, meaning researchers should treat both entries as restatements of a single seventeenth-century source rather than as independently verified definitions.
Cowell's account is accurate as far as it goes. The tonsure as a marker of clerical status was well established in canon law and is consistent with broader medieval ecclesiastical practice documented in sources such as Gratian's Decretum. What the historical dictionaries do not address is the legal mechanism by which tonsure conferred enforceable jurisdictional consequences in English courts — a gap researchers should fill by consulting works on benefit of clergy and the history of ecclesiastical jurisdiction rather than relying on dictionary entries alone.
Jurisdictional Note
This term is specific to the medieval and early modern English legal and ecclesiastical system as shaped by Roman canon law. It has no operative meaning in modern common law jurisdictions. Researchers working in comparative or continental legal history will find analogous concepts in canon law sources, but the particular phrase coronare filium as a term of art appears most consistently in English legal dictionaries derived from Cowell.