Definition
In autre droit (Law French: "in another's right") describes the capacity in which a person acts when exercising legal rights or powers that belong not to themselves but to another person whom they represent. A fiduciary, guardian, executor, trustee, or administrator acts in autre droit when bringing suit, holding property, or taking legal action on behalf of the person whose rights are at stake — the beneficiary, ward, estate, or trust. The actor has no personal claim or interest in the matter; the right originates in and remains with the represented party.
The concept operates as a classification of legal standing and capacity. It answers the question: whose right is actually being exercised here? When the answer is "someone else's," the actor is proceeding in autre droit.
Common Confusion
IN AUTRE DROIT vs. IN PROPRIA PERSONA / IN HIS OWN RIGHT: These are direct opposites. A person acting in propria persona (or "in his own right") asserts a right that is personally theirs. A person acting in autre droit asserts a right belonging to another. The confusion arises most often in estate and trust litigation, where an executor may sue both in their personal capacity (in propria persona, for wrongs done to them individually) and in autre droit (for wrongs done to the estate) in the same proceeding. Conflating the two capacities can produce errors in pleading, standing analysis, and liability exposure.
IN AUTRE DROIT vs. AGENCY: Agency and in autre droit overlap but are not identical. An agent acts in another's name by authority; the in autre droit concept is broader and encompasses fiduciary relationships — executors, administrators, guardians — who hold legal title or formal status, not merely authority to act. An agent typically binds the principal directly; a fiduciary acting in autre droit may hold legal title while the beneficial interest vests elsewhere.
Why It Matters in Research
Researchers encounter this phrase most often in historical equity and common law pleading materials, particularly in cases involving executors and administrators. Several practical traps arise:
First, capacity pleading: Common law courts required a plaintiff to identify the capacity in which they sued. An executor who failed to plead in autre droit — instead appearing to assert a personal claim — risked dismissal or adverse judgment on the wrong account. Historical case records may reflect this technical precision in ways that seem obscure to modern readers.
Second, liability shield: Because the actor in autre droit holds no personal interest, they are generally not personally liable on the underlying obligation (absent personal fault or statutory exception). This distinction separates personal liability from representative liability throughout trust, estate, and guardianship law. Researchers tracing liability arguments in older equity cases should watch for the phrase as a signal that the defendant is asserting representative, not personal, capacity as a defense.
Third, the concept threads through the law of coverture. A married woman acting in another's right — particularly as executrix — occupied a legally distinct position from her usual common law disabilities. Courts sometimes permitted her to sue or be sued in autre droit even when she could not act in her own right. Researchers working in pre-20th century domestic relations, probate, or equity materials should note this intersection.
Fourth, the phrase appears in property contexts, particularly in older discussions of seisin and tenure. A lord or tenant who held land in autre droit held it in a representative capacity rather than as beneficial owner — a distinction that affected alienability, liability for feudal incidents, and the scope of available remedies.
Historical Dictionary Support
Both Black's editions confirm the core meaning: "in another's right; as representing another." The entries in the source material are notably brief, and the 2nd edition version appears with a typographical artifact ("@quali manu") suggesting the text was imperfectly reproduced — a useful reminder that digital transcriptions of older editions require verification against original print sources.
Neither Black's edition provides substantive elaboration beyond the definitional phrase itself. Earlier legal lexicographers, including Jacob's Law Dictionary and Tomlin's Law Dictionary, treated the concept more fully in the context of executors and administrators, connecting it explicitly to the rule that an executor suing in autre droit cannot set off a personal debt owed by the defendant to the executor individually. That cross-capacity setoff problem is a recurring doctrinal point that neither Black's edition addresses, and researchers relying solely on Black's will miss it.
Bouvier's Law Dictionary (1856) similarly treats the phrase concisely but places it in the context of representative actions, which is the more useful framing for equity research.
Jurisdictional Note
The in autre droit framework is a feature of common law and equity systems descended from English practice. Modern American procedure largely absorbs the concept into rules governing capacity to sue and representative actions (see, e.g., Federal Rule of Civil Procedure 17), but the underlying doctrine — that a fiduciary acts in a representative rather than personal capacity — remains operative across all U.S. jurisdictions.