Definition
De recto de rationabili parte (Latin: "writ of right of reasonable part") was a common law writ of right available between persons related by blood who held land jointly as coparceners under fee-simple tenure. It lay specifically where one coparcener had been deprived of their rightful share of inherited land by another — for example, between brothers holding land in gavelkind, or between sisters or other coparceners entitled to equal division of an inheritance.
The writ belonged to the family of writs of right, which were the most formal and solemn category of real actions at common law. Because it operated between privies in blood rather than strangers, it occupied a specialized niche within that family: it assumed an existing relationship of co-inheritance and addressed the internal disruption of shares within that relationship, rather than a claim against an outside party.
The writ was formally abolished by the Real Property Limitation Act 1833 (3 & 4 Wm. IV, c. 27), which swept away most of the ancient real actions as part of a broader rationalization of English property procedure.
Common Confusion
De recto de rationabili parte is easily conflated with the general writ of right (de recto), but the distinction matters. The general writ of right ran between any claimants to freehold land and did not presuppose a blood relationship. De recto de rationabili parte was confined to coparceners — persons who took land together by descent — and addressed the specific wrong of one co-heir appropriating more than their proportionate share. Researchers encountering either writ in historical records should confirm whether the parties were related by descent before assuming the forms are interchangeable.
Why It Matters in Research
This term will appear almost exclusively in pre-1834 English common law materials: plea rolls, register books of writs, and early treatises on real property and real actions. Researchers should be aware of several navigational points.
First, the writ's abolition date is precise. The Real Property Limitation Act 1833 is the cutoff; any pleading or procedural discussion after that date is either historical commentary or academic analysis of prior practice, not living procedure.
Second, gavelkind is a key associated term. Gavelkind was the customary tenure prevalent in Kent under which land descended to all sons equally rather than to the eldest alone. De recto de rationabili parte was one of the mechanisms for enforcing those equal shares when disrupted. Research into Kentish land disputes or gavelkind tenure disputes will frequently encounter this writ.
Third, coparcenary is the essential property concept. The writ presupposes coparcenary — the form of co-ownership arising by operation of law from inheritance, distinct from joint tenancy or tenancy in common created by deed. Understanding coparcenary is prerequisite to understanding the writ's scope.
Fourth, the writ belongs to a larger ecosystem of real actions — a family of forms largely obsolete by the nineteenth century and entirely foreign to modern practice. Corpus researchers working in Bracton, Glanvill, Fitzherbert's Natura Brevium, or the Registrum Omnium Brevium will encounter the writ in its natural habitat. Fitzherbert's Natura Brevium at 9, B is the primary practical authority Black's cites, and that source remains the most accessible early account of the writ's function and pleading requirements.
Fifth, the writ's confinement to privies in blood means it will appear in genealogical contexts as well as legal ones. Chancery and common law records involving inheritance disputes among siblings or female heirs (where coparcenary most commonly arose, since daughters co-inherited equally at common law) are the most productive search locations.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed., Supplemental) provides the core account: a writ lying between privies in blood — specifically naming brothers in gavelkind and sisters or other coparceners — for lands in fee-simple where one co-heir was deprived of their share by another. Black's cites the Registrum Omnium Brevium (Reg. orig. 3b) and Fitzherbert's Natura Brevium (9, B) as authorities, and correctly identifies the abolishing statute as 3 & 4 Wm. IV, c. 27.
No substantive divergence exists among available sources because the historical record on this writ is thin and consistent. It was a narrow, specialized action; it did not generate the doctrinal controversy that attached to broader writs of right. What historical dictionaries collectively miss is the writ's practical rarity even before abolition: gavelkind tenure was geographically limited, coparcenary among brothers was uncommon outside Kent, and disputes that might have used this writ were frequently resolved through other means. The writ should be understood as a technical survival of archaic real action practice rather than a commonly invoked remedy.
Jurisdictional Note
De recto de rationabili parte was an English common law writ with no direct counterpart in American practice. American jurisdictions did not transplant the formal real actions as a system, and gavelkind tenure never took root in colonial property law. Researchers working in American sources will not encounter this writ in operative use.