FAMILIE ERCISCUNDAE

Definition

An action in Roman law for the partition of a familia — the aggregate estate or succession — among co-heirs (co-haeredes) who inherited jointly. The action had two related functions: first, to compel division of the inherited property among those entitled to share it; and second, to enforce contribution among co-heirs toward necessary expenses incurred in maintaining or preserving the common estate before partition was completed. The term derives from the Roman law of succession and belongs to the broader category of actiones divisoriae — partition actions — alongside communi dividundo (partition of jointly held property) and finium regundorum (settlement of boundaries). All three were formulary actions of the classical Roman period. ---

Common Confusion

FAMILIE ERCISCUNDAE is sometimes loosely treated as equivalent to any partition action in Roman law. It is not. The action was specific to the partition of an inherited estate among co-heirs. It did not govern all forms of common ownership — that was the province of actio communi dividundo. The distinction matters when reading Roman law sources: an author citing familie erciscundae is addressing the law of succession and co-heirship specifically, not joint ownership arising from contract, purchase, or other sources. ---

Why It Matters in Research

This term appears almost exclusively in Roman law sources, civil law treatises, and historical legal dictionaries. Researchers are most likely to encounter it in one of three contexts: **Civil law jurisdictions and their historical foundations.** Louisiana, Quebec, and other jurisdictions with Roman or civil law roots inherited partition concepts traceable to this action. When reading 18th- or 19th-century Louisiana treatises or French-derived civil codes, the underlying Roman framework — including familie erciscundae — often surfaces, sometimes untranslated. **Historical partition law in common law sources.** English equity courts developed their own partition jurisdiction largely independent of Roman forms, but learned writers in the 17th and 18th centuries frequently cited Roman law analogs for legitimacy and structure. Encountering this term in an English or early American treatise signals the author is reaching back to Roman foundations, not describing operative English law. Do not assume the Roman procedural rules carried over. **The contribution-toward-expenses function.** The secondary purpose of the action — compelling co-heirs to contribute toward necessary estate expenses — is easy to overlook. Rapalje & Lawrence flag it, and it has modern analogs in co-heir contribution claims and estate administration disputes. Researchers working on contribution obligations among joint heirs or co-executors may find that this Roman mechanism is the ancestor being cited in historical argument. **Terminological traps.** Historical sources spell and abbreviate this term inconsistently. Variants include *actio familiae erciscundae*, *familia erciscundae*, and in older texts simply *erciscundae*. Index searches in digitized historical sources will miss entries if only one spelling is used. Search all variants when doing corpus research. ---

Historical Dictionary Support

Rapalje & Lawrence provide the essential definition and correctly identify both functions of the action: partition of the inherited estate and contribution toward necessary expenses. Their entry is accurate and concise, though it cuts off before completing the adjacent entry on *falsus in uno, falsus in omnibus* — a formatting artifact of the source, not a gap in the coverage of this term. What Rapalje & Lawrence do not address: the procedural mechanics of the Roman action, its relationship to the broader system of actiones divisoriae, or the question of how the action was received (or transformed) in civil law jurisdictions that claim Roman descent. For those dimensions, researchers should turn to civil law treatises and Roman law scholarship directly, rather than relying on the brief entry in the dictionary. Historical dictionaries uniformly treat this as a Roman law term with no direct common law counterpart — a correct characterization. No significant divergence among sources on the core definition. ---

Jurisdictional Note

This action has no direct operative existence in modern common law jurisdictions. In civil law systems with Roman roots — particularly Louisiana and Quebec — the conceptual framework survives in partition and succession statutes, though the Roman terminology is not used in modern codes. Researchers applying this term outside a Roman law or legal history context should treat it as historical background, not as authority for current law. ---

Encyclopedia Cross-Reference

The Law Mind Family Law Encyclopedia does not contain a direct entry on Roman succession actions. The closest thematic connections are tangential; no encyclopedia cross-reference is warranted for this term. ---

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