Definition
De buliaco is a Latin locative designation meaning "of Buliac" or "of Bully," used in medieval English legal records to indicate that a person or family originated from, held land in, or was associated with a place called Bully or Buliac — likely a Norman toponym. The phrase functions as a surname or identifying suffix in the style of Norman-French nomenclature common to post-Conquest English legal and land records. It is not a term of legal art in the doctrinal sense but rather a personal or familial identifier appearing in property, tenure, and plea records of the medieval period.
Why It Matters in Research
Researchers encountering de buliaco in historical legal sources are most likely working with medieval plea rolls, land tenure records, or Bracton-era property disputes. The term is a locative surname, not a legal doctrine, and its significance is genealogical and contextual rather than substantive. Burrill's sole citation to Bracton (fol. 418) anchors the term to property and tenure law of the thirteenth century — a period when Norman-style locative surnames were still actively used to identify parties in legal proceedings.
The primary research trap is mistaking this phrase for a Latin legal maxim or term of art. The prefix "de" in medieval legal Latin frequently signals a locative construction (de meaning "of" or "from") rather than a legal principle. Researchers should not conflate de buliaco with substantive Latin legal phrases that begin with "de" (e.g., de bonis asportatis, de novo, de facto).
The name appears in Bracton's De Legibus et Consuetudinibus Angliae, one of the foundational treatises of English common law. Bracton's text frequently incorporates actual persons and cases to illustrate legal principles, meaning that a reference to an individual identified as "de buliaco" likely serves as an example party in a discussion of real property, seisin, or possessory rights — the subject matter of folio 418's surrounding text.
For genealogical or family history research intersecting with medieval English law, identifying the Busli or de Bully family is essential context. The family of de Busli (also rendered Busli, Builli, or Bully) was a significant Norman landowning family in post-Conquest England, holding extensive lands particularly in Yorkshire and Nottinghamshire. Their appearances in legal records reflect the tenure disputes and property arrangements common to the Norman settlement period.
Historical Dictionary Support
Burrill's Law Dictionary entry is sparse to the point of being a cross-reference rather than a definition: it equates de buliaco with the surnames Busli and Bussey, glosses the individual as "called de Bully," and cites Bracton folio 418 without further elaboration. Burrill treats the term as a proper name requiring identification rather than a legal concept requiring explanation.
This entry illustrates a category of inclusions common to nineteenth-century law dictionaries: proper names, place-based surnames, and individual identifiers from canonical legal texts. Such entries were included not because the name itself carried legal meaning, but because a researcher encountering the term in Bracton or a plea roll needed to know who or what was being referenced. Burrill's function here is essentially an index to persons named in authoritative sources.
No other major historical legal dictionaries (Black's, Bouvier's, Jacob's) appear to carry this entry, suggesting it was recognized as sufficiently obscure or specialized that only a comprehensive dictionary like Burrill's would include it.
Jurisdictional Note
This term is specific to medieval English legal records and has no application in modern jurisdictions. Researchers in Scottish, Irish, or continental European records may encounter analogous locative naming conventions but should not assume the same family or place reference applies.