Definition
Collatio is a Latin term drawn from Roman law with three distinct legal senses, each grounded in the root idea of bringing things together or contributing to a common fund.
1. Collatio bonorum (hotchpot contribution). The principal legal meaning in succession and equity contexts: the requirement that an heir or beneficiary who has already received property advances from a decedent must bring those advances into account — throw them into a common fund — before taking an equal share with co-heirs. The rule prevents one heir from receiving both an advance and a full inheritance share at the expense of others.
2. Contribution or average in maritime law. In admiralty, collatio describes the principle of general average: when cargo or ship's property is sacrificed to save the common venture, all parties with an interest in the voyage contribute proportionally to the loss. The term captures the pooling logic that underlies general average adjustments.
3. Comparison or collation of instruments. Collatio in its more literal sense means a side-by-side comparison of two documents or things. Collatio signorum or collatio sigillorum refers specifically to the ancient practice of comparing seals to test whether an instrument was genuine — an early form of documentary authentication.
Common Confusion
Collatio bonorum and hotchpot are functionally synonymous in English equity practice, but researchers should not treat them as perfectly interchangeable across all periods or jurisdictions. Hotchpot became the dominant English term; collatio bonorum remained the preferred term in civil law systems and in scholarly treatments of Roman law. A source using collatio bonorum may be reasoning from Roman or Continental authority rather than English common law, which can affect both the rule's scope and its exceptions. Collatio as comparison (sense 3) shares nothing operationally with collatio as contribution (sense 1) beyond the Latin root; conflating them in a historical document produces serious misreadings.
Recognized Forms
/SUBTYPES
Collatio bonorum — contribution of goods; the hotchpot rule in succession. The core form in civil law inheritance doctrine.
Collatio dotis — the specific obligation of a daughter who received a dowry to bring it into account on the father's succession, recognized in Roman law and carried into some civil law jurisdictions.
Collatio signorum / collatio sigillorum — comparison of seals or signs; the authentication practice.
Collatio in maritime law — general average contribution; the admiralty application.
Why It Matters in Research
The primary research trap is the term's multiplicity. A treatise or court opinion using collatio without qualification may be invoking any of the three senses above, and the surrounding context is the only reliable guide. Civil law sources — and English sources heavily influenced by Roman or canon law — overwhelmingly use the term in the succession sense. Admiralty sources use it for general average. Documentary and diplomatic history sources use it for seal comparison.
For succession research, collatio bonorum is the critical entry point. In English equity, the doctrine evolved into the hotchpot rule, and by the nineteenth century most English and American courts wrote about it as hotchpot rather than collatio. Researchers working backward from modern cases into earlier equity materials will therefore encounter a vocabulary shift at roughly the seventeenth and eighteenth centuries. The civilian concept of collatio dotis — the dowry contribution — appears in English sources mainly where courts were grappling with civil law marriages or Continental estates; it is not a native common law doctrine.
For maritime research, collatio as general average contribution is an older framing. Modern general average practice is governed by the York-Antwerp Rules, and contemporary sources do not use collatio for it; the term appears primarily in pre-twentieth-century admiralty treatises and in scholarly histories of maritime law.
The seal-comparison sense (collatio signorum) is mainly relevant to diplomatic history, manuscript studies, and the law of ancient documents. It surfaces occasionally in early evidence treatises when discussing proof of deed authenticity.
Burrill cites Loccennius's De Jure Maritimo for the maritime application — a seventeenth-century Dutch admiralty authority — which signals that this usage traveled into English legal writing through Continental sources rather than indigenous common law development.
Historical Dictionary Support
Burrill's Law Dictionary is the primary shelf source treating this term. Burrill correctly identifies all three functional senses and grounds them in the Latin root conferre (to bring together, to contribute, to confer). The entry is necessarily compressed, but the structural insight — that collatio describes a putting-together, whether of funds, of heirs' advances, or of documents for comparison — is accurate and remains useful as an organizing principle.
What the historical dictionaries do not supply is guidance on how the doctrine of collatio bonorum was received, modified, or displaced in American jurisdictions. Many American states codified intestate succession rules in the nineteenth century in ways that either absorbed or superseded the collatio obligation without using the term; a researcher will not find the connection by looking only under collatio in a legal dictionary. The civilian collatio dotis is largely absent from common law dictionaries, which reflects its limited penetration into English practice rather than its unimportance in civil law systems.
The citation to Loccennius (Jus Maritimum et Navale, 1650) for the maritime sense is genuine and worth noting; it places the admiralty usage firmly in the seventeenth-century Continental tradition of maritime scholarship that influenced English admiralty courts.
Jurisdictional Note
Collatio bonorum as a doctrine has its deepest roots in Roman and civil law systems and remains more structurally significant in Louisiana, Quebec, and other mixed civil law jurisdictions than in common law states, where its functional equivalent — hotchpot — was absorbed into equity doctrine and later into statutes governing advancements in intestate succession.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Hotchpot
Law Mind Encyclopedia — General Average
Law Mind Encyclopedia — Roman Law of Succession