Definition
Patronatus is a Latin term of Roman and ecclesiastical law with two distinct applications:
1. Roman law. The condition, status, and bundle of legal relations arising between a patron (patronus) and a freedman (libertus). This relationship was not merely social but legally operative: it carried enforceable rights and reciprocal duties, including claims to services, inheritance rights, and obligations of mutual support. The patron occupied a position of formal legal superiority over the freed person, and the relationship could affect succession, guardianship, and civic standing.
2. Ecclesiastical law. The right of patronage — that is, the right of a founder, benefactor, or designated lay person to present a candidate for appointment to an ecclesiastical living or benefice. The maxim preserved in the historical sources captures the basis of this right: Patronum faciunt dos, aedificatio, fundus — endowment, building, and land make a patron. One who founded or substantially endowed a church thereby acquired the jus patronatus, the right to influence or control the appointment of its clergy.
Common Confusion
Patronatus is frequently conflated with two related but distinct terms. Patronus refers to the individual person holding the status — the patron himself — while patronatus denotes the legal condition, relationship, or right that flows from that status. The distinction mirrors the difference between an office and its holder. Separately, in ecclesiastical contexts, patronatus (the abstract right) must be distinguished from advowson, which is the common law form of the same concept: the property right to present a clerk to a bishop for institution to a benefice. Advowson is the English common law term; patronatus is the civilian and canonical term for the same underlying entitlement.
Recognized Forms
/SUBTYPES
In ecclesiastical law, the jus patronatus (right of patronage) was further divided:
- Patronatus laicalis: Patronage held by a lay person, arising from endowment, construction, or grant of land to a church.
- Patronatus ecclesiasticus: Patronage held by a cleric or ecclesiastical institution.
- Patronatus regius: Royal patronage, where the Crown held the right of presentation, a category of particular importance in English ecclesiastical history.
These distinctions determined procedural rights, the forum in which disputes were heard, and whether temporal or spiritual courts had jurisdiction.
Why It Matters in Research
Researchers will encounter patronatus primarily in two distinct bodies of historical source material that must not be treated as interchangeable.
In Roman law sources, patronatus is inseparable from the institution of manumission and the legal architecture surrounding slavery and freedom. The rights and duties of the patronus-libertus relationship appear throughout the Digest and Institutes, and secondary works on Roman private law will index this material under patronatus, patronus, and libertus. Researchers working on the history of personal status, succession, or Roman family law should expect cross-references to all three.
In ecclesiastical law sources — canon law, English ecclesiastical court records, and English legal history — patronatus operates as the civilian counterpart to advowson. This is a critical navigational point: English common law reporters and treatise writers almost universally use the term advowson rather than patronatus, while canonical and civilian writers use patronatus or jus patronatus. A researcher who searches only one vocabulary in a mixed-jurisdiction corpus will miss half the material. Ecclesiastical court disputes over the right of presentation were resolved in spiritual courts using the civilian vocabulary; common law courts protecting the same right used the writ of quare impedit and the term advowson. Both bodies of law address the same practical conflict.
The maxim Patronum faciunt dos, aedificatio, fundus — cited in Doddridge's Advowsons — was a working rule of ecclesiastical law that determined whether a claimant could establish the right of patronage. Researchers examining disputes over church livings in historical records should know that proof of endowment, construction, or land grant was the threshold question.
Rapalje & Lawrence's entry is notably thin, directing readers to the term Patronage rather than developing patronatus independently. This reflects a pattern in American legal dictionaries of this period: Roman and canonical terminology was often passed over in favor of common law equivalents, which can create blind spots when researching sources that preserved the civilian vocabulary.
Historical Dictionary Support
The four source dictionaries present consistent definitions with minor variation in depth. Black's (both editions) and Burrill's agree on the dual application — Roman law status and ecclesiastical patronage — and all reproduce or reference the Doddridge maxim. Burrill explicitly cross-references patronus, which is the appropriate next entry for researchers seeking the fuller Roman law context.
Rapalje & Lawrence diverge by collapsing patronatus into a bare redirect to "Patronage," omitting the Roman law dimension entirely. This is a meaningful gap: the American legal dictionary tradition of this period was less attentive to Roman law specifics, and Rapalje & Lawrence's entry reflects that orientation rather than any genuine equivalence between the terms.
None of the source dictionaries address the procedural distinction between ecclesiastical and common law courts in patronage disputes, or the significance of the civilian/common law vocabulary split noted above — a gap that historical dictionary research alone will not fill.
Jurisdictional Note
In England, patronatus as an ecclesiastical right corresponded directly to the common law property right of advowson, and jurisdiction over disputes was historically divided between ecclesiastical and temporal courts depending on the nature of the claim. In civilian and canon law jurisdictions on the Continent, patronatus remained the operative term throughout. American law largely abandoned the ecclesiastical dimension following disestablishment, making patronatus a term of historical and academic research rather than active doctrine in United States jurisdictions.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Advowson; Patronage (Ecclesiastical); Roman Law of Personal Status