Definition
Unde vir et uxor (Latin: "whence husband and wife") is a form of bonorum possessio — the praetorian grant of possession of a deceased person's estate — extended specifically to spouses. Under Roman civil law, it operated as a mechanism of intestate succession allowing a surviving husband or wife to receive possession of the deceased spouse's estate when the ordinary succession of cognates (blood relatives) had failed or was unavailable.
It belongs to a category of praetorian remedies designed to fill gaps in the older civil law of inheritance, which gave spouses no automatic hereditary right to each other's property. The unde vir et uxor grant supplied what the strict civil law withheld: a path to succession grounded in the marital relationship itself rather than in blood.
Why It Matters in Research
This term appears almost exclusively in Roman and civil law sources and in comparative or historical scholarship on the law of succession. Researchers will encounter it in treatises on Roman private law, commentaries on Justinian's Institutes and Digest, and in early common law works that drew on civil law tradition to explain why English law took a different path in spousal inheritance.
The primary research trap is treating unde vir et uxor as a functioning doctrine in any modern common law jurisdiction — it is not. Its relevance is historical and comparative. Researchers studying the evolution of dower, curtesy, or modern elective share statutes may encounter references to unde vir et uxor as a civil law analog or point of contrast, but the doctrines are structurally distinct.
The Burrill entry is unusually compressed even by that dictionary's standards and contains an apparent transcription artifact ("In the separate account, to indemnify to the excivil law" is garbled text, likely corrupted during typesetting). Researchers relying on Burrill should consult the primary sources it cites — Institutes 3.10.1–2 and Digest 38.11 — directly for accurate doctrinal content.
Corpus connections: Researchers working on Roman inheritance law, the history of marital property, or the civilian tradition's influence on early common law will find this term surfacing in the same contexts as bonorum possessio, cognati, intestate succession, dower, and curtesy.
Historical Dictionary Support
Burrill is the principal English-language law dictionary source for this term, and his entry, though brief, correctly identifies the essential features: the civil law classification as a species of bonorum possessio, the spousal beneficiary, and the triggering condition of failure among the cognati. The citations to Justinian's Institutes (3.10.1–2) and Digest (38.11) are the authoritative primary sources; Heineccius's Elementa Juris Civilis and Hall's Analysis of the Civil Law provide the secondary framework Burrill relies upon.
No common law dictionary in the standard English tradition treats this term substantively, which itself reflects the doctrine's firm residence in the Roman and civil law tradition rather than the common law. The historical record is consistent on the core structure: it was a remedy of praetorian origin, not a civil law right in the strict sense, and it operated as a safety net of last resort for surviving spouses — lower in the order of succession than blood relatives but recognized when those classes had failed.
Jurisdictional Note
Unde vir et uxor has no operative force in any common law jurisdiction. It is a Roman civil law doctrine of historical and comparative significance only. Researchers in mixed jurisdictions with civil law heritage (Louisiana, Quebec, Scotland) may encounter it in doctrinal history, but even in those systems it has long been superseded by statutory spousal succession rights.