Definition
De warrantia chartæ (Latin: "of warranty of charter") was a common law writ that allowed a feoffee — a person who had received land by feoffment — to compel the feoffor, or the feoffor's heir, to make good on a warranty of title contained in the original charter of feoffment. The writ arose when the feoffee was sued in an assise or other real action to recover the land and found himself unable to use the ordinary procedural remedy of vouching the warrantor into the action. Rather than lose the land without recourse, the feoffee could bring this writ directly against the warrantor to enforce the warranty obligation.
The practical effect of a successful writ was to require the warrantor to defend the title or, if the feoffee was ultimately dispossessed, to compensate him with land of equivalent value. It was thus both a procedural lifeline and a substantive enforcement mechanism for warranty covenants in medieval land transactions.
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Common Confusion
De warrantia chartæ is occasionally conflated with the vouching procedure (voucher to warranty) used within ongoing real actions. The distinction is procedural: voucher occurred within the same action and brought the warrantor in as a co-defendant to defend title directly. De warrantia chartæ was a separate, independent writ used precisely when voucher was unavailable — most commonly because the form of action being brought against the feoffee did not permit it. The two remedies were parallel routes to the same underlying right, not interchangeable tools.
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Why It Matters in Research
This is an archaic writ of medieval English common law with no surviving operational counterpart in modern practice. Researchers will encounter it almost exclusively in:
1. Historical property law research, particularly scholarship on feudal land tenure, feoffment, and the evolution of warranty covenants from the medieval period through the development of modern title guarantee.
2. Reading older treatises and Year Books where writs of this kind appear as procedural building blocks. Fitzherbert's Natura Brevium and the Registrum Brevium (Reg. Orig.) are the classical sources cited in connection with this writ; researchers consulting those texts will need to recognize the writ's function to follow the surrounding procedural discussion.
3. Tracing the ancestry of modern warranty covenants in deeds. The obligation enforced by this writ — that a grantor stands behind the title conveyed — is the direct conceptual ancestor of express and implied warranty covenants in modern conveyancing. Understanding de warrantia chartæ illuminates why warranty language in deeds carries the weight it does.
A key research trap: because this writ appears only in pre-modern English sources, American legal dictionaries and digests largely ignore it or treat it in a single sentence. Black's 2nd Edition gives it minimal treatment. Researchers needing depth must go directly to Fitzherbert, Coke's Institutes, or Blackstone's Commentaries (Book III) for meaningful discussion of how the writ operated in practice. Do not rely on secondary American sources for procedural nuance.
Corpus navigation note: in Law Mind sources, material touching this writ will appear in discussions of real property warranty, the law of feoffment, and the forms of action. It will not have significant standalone treatment; look for it embedded within broader entries on warranty or real actions.
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Historical Dictionary Support
Black's Law Dictionary (2nd Ed.) defines the writ concisely as lying "for him who was enfeoffed, with clause of warranty, and was afterwards impleaded in an assise or other action, in which he could not vouch or call to warranty," citing Reg. Orig. 157b and Fitzherbert's Natura Brevium 134. The entry is descriptively accurate but thin — it identifies the trigger condition and the parties without explaining the underlying warranty theory or the writ's relationship to dispossession and substitution of equivalent land.
Historical sources do not diverge meaningfully on the writ's mechanics; it was sufficiently specific and archaic by the time major legal dictionaries were compiled that there was little occasion for interpretive disagreement. What historical sources collectively miss is any account of how frequently the writ was actually used in practice, and at what point it fell into disuse. The writ's obsolescence tracks the general decline of the forms of action and the shift toward assumpsit and covenant as vehicles for enforcing contractual obligations — a transition the dictionary literature records only implicitly.
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Jurisdictional Note
De warrantia chartæ was a writ of English common law and had no meaningful reception in American practice as an independent writ. American conveyancing adopted the underlying warranty obligation — not the procedural machinery — and embedded it in deed covenants enforceable by ordinary contract and property actions. The writ is therefore of historical rather than comparative jurisdictional interest.
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