Definition
Ex stipulatu actio (Latin: "action from stipulation") is a term from Roman civil law denoting a personal action brought to enforce an obligation arising out of a stipulatio — the formal verbal contract of Roman law. In its most specific and historically documented usage, it refers to the action available to a wife (or her heir) to recover her dos, or marriage portion (dowry), from a husband or his estate upon dissolution of the marriage. The action took its name from the fact that the obligation to return the dowry was typically secured by a stipulation made at the time of the marriage settlement.
The broader sense encompasses any action grounded in a stipulatio, Roman law's foundational device for creating enforceable obligations through a formal question-and-answer exchange. The narrower, marriage-portion sense is the meaning preserved in the institutional sources and carried forward into the legal dictionaries of the common law tradition.
Common Confusion
Ex stipulatu actio is sometimes loosely conflated with the actio de dote, which was the earlier and more general action for recovery of a dowry. The distinction is technical but real: the actio de dote arose from the marital relationship itself, while the ex stipulatu actio arose from a specific stipulation — a formal promise — to return the dowry. By the time of Justinian's Institutes, the two actions had been largely assimilated in practice, which is part of why later commentators (and the dictionary sources) tend to state the definition in terms of the marriage-portion recovery without fully unpacking the stipulatio foundation.
Why It Matters in Research
This term appears almost exclusively in sources engaging with Roman or civil law and is unlikely to surface in common law case reporters except in historical treatise quotations or comparative discussions of contract and family law. Researchers working in civil law jurisdictions, ecclesiastical law, or early American and Scottish legal materials — where Roman law influence persisted — are most likely to encounter it.
The Institutes citation (Inst. 4, 6, 29) refers to Justinian's Institutes, a primary source of Roman law. Any researcher following this citation should be aware that the numeration varies slightly across editions and translations; the passage concerns the classification of personal actions and the recovery of dos. Familiarity with the broader Roman law of stipulatio is essential context: without it, the term appears to be merely a procedural curiosity rather than a window into Rome's systematic treatment of contractual obligation and matrimonial property.
For researchers in the Law Mind corpus, this term flags the presence of Roman law conceptual vocabulary in whatever source it appears. Its occurrence in an early American or English legal text is itself a signal about the author's training, the document's audience, and the doctrinal tradition being invoked. It is not a term of living common law.
Historical Dictionary Support
All three dictionary sources — Black's (first and second editions) and Burrill's — are in complete agreement, and the entries are nearly word-for-word identical. All define the term as "an action of stipulation" and immediately specify its practical application: recovery of marriage portions. All cite Inst. 4, 6, 29 as authority. This uniformity reflects the fact that these dictionaries were drawing on a common Roman law source rather than synthesizing divergent common law authority.
What the historical dictionaries do not do is explain the stipulatio mechanism that gives the action its name, nor do they distinguish this action from related Roman matrimonial remedies. A researcher relying solely on these entries gets the definition and the citation but not the doctrinal scaffolding needed to use the term with precision. The second edition entry contains a typographical error ("clvll" for "civil," "4, ft." for "4, 6,") reflecting transcription artifacts common in early printed legal reference works.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Stipulation (Roman Law); Dos and Matrimonial Property (Civil Law Tradition)