Definition
A Latin term from Roman civil law meaning "heir" or "an heir." HERES is a variant spelling of HÆRES and appears with high frequency in civil law texts, commentaries on Roman law, and inherited legal traditions that drew from the Corpus Juris Civilis. The two spellings are interchangeable in legal usage; the distinction is orthographic, not substantive.
In Roman law, the heres occupied a central and distinctive role: the heir was not merely a recipient of property but the legal continuation of the deceased's juridical personality. The heres succeeded to both assets and liabilities, stepping into the testator's legal position in a way that differs fundamentally from the modern common law conception of inheritance.
Common Language
Modern common usage (Wiktionary): Plural of "here" (the adverb indicating location).
Historical common usage (Webster's 1913): No entry; the term does not appear in standard English vocabulary.
The gap here is total. In ordinary English, HERES has no legal resonance whatsoever — it appears only as an incidental grammatical form of an unrelated word. Researchers encountering HERES in a legal text should recognize immediately that it is Latin, not English, and treat it as a civil law term of art referring to an heir.
Common Confusion
HERES vs. HÆRES: These are the same word. The æ ligature is classical orthography; HERES is the simplified form that appears more commonly in post-medieval legal printing and in American legal texts. Neither spelling signals a different legal meaning. Researchers should not treat these as distinct entries when consulting multiple historical sources — Bouvier's, for instance, routes HERES directly to HÆRES without independent treatment.
HERES vs. LEGATEE: In Roman law, these are sharply distinct. The heres was a universal successor who inherited the entire legal position of the deceased (or a fractional share thereof). A legatee received a specific bequest but did not succeed to the decedent's legal personality or liabilities. This distinction matters when reading civil law sources: the rights and obligations attached to each status differ substantially.
HERES vs. HEIR (common law): The functional overlap is real but incomplete. The common law heir inherits property by operation of law; the Roman heres succeeded to legal personality itself. When reading civil law commentaries, do not assume that heres carries all the same implications as the common law term "heir."
Why It Matters in Research
HERES is primarily an access point, not a standalone research destination. Researchers will encounter it in original Latin texts, in early English and American treatises that quoted or translated Roman law, and in ecclesiastical and civil law jurisdictions influenced by Roman tradition (Louisiana, Quebec, Scotland, and mixed-law systems generally).
The main navigational task is recognizing that HERES and HÆRES are the same term and tracking which spelling a given source uses. Older printed editions with typographic limitations often render the æ ligature inconsistently — sometimes as "ae," sometimes as a plain "e," sometimes as the ligature itself. Index searches in historical corpora may miss entries depending on which rendering was used. Search all variants when doing corpus research.
Researchers working on succession law, estate history, or civilian legal tradition should move quickly from this entry to HÆRES, where the substantive doctrine is developed. The concept of universal succession — the heres as continuation of the decedent's legal person — is the intellectual core, and it underpins doctrinal differences that persist in civil law jurisdictions today.
Historical Dictionary Support
All four historical sources treat HERES as a simple cross-reference to HÆRES, without independent doctrinal development. Black's (both editions) and Burrill agree word-for-word: "Heir; an heir. A form of hæres, very common in the civil law." Bouvier offers only a redirect. This unanimity is itself instructive — the historical dictionaries regarded the term as purely orthographic variation, not a separate legal concept.
What the historical dictionaries do not address is the deeper distinction between the Roman heres and the common law heir. Readers of these dictionaries who follow the cross-reference to HÆRES will find more, but even there, the full civilian doctrine of universal succession is compressed. Treatise sources — particularly those drawing on Justinian's Institutes and Digest — are necessary for complete doctrinal context.
Jurisdictional Note
The term is most relevant in jurisdictions with civil law roots: Louisiana, Quebec, Scotland, and other mixed systems. In purely common law jurisdictions, HERES appears mainly in historical sources and academic writing about Roman or comparative law, not in operative legal documents.
Encyclopedia Cross-Reference
See HÆRES (primary entry for substantive doctrine)
See also: Succession; Universal Succession; Heir