Roman contracts

What is consensus ad idem?

A 'meeting of minds' — requirement for all contracts. consensual= agreement alone suffices; real= delivery also required; verbal= formal words also required; literal=a written entry also required.

What is error in negotio?

Mistake as to the nature of the transaction itself- e.g. one party hands over money as a deposit while the other takes it as a loan. No contract exists, but a condictio may lie (Ulpian)

What is error in persona?

Mistake as to the identity of the counterparty. Only when their identity is relevant to the contract (e.g. partnership) (Celsus)

What is error in corpore?

Mistake as to the identity of the thing itself. No agreement on the subject matter= sale is void. Mistake as to name only (identity not in dispute) does not affect validity (Ulpian)

What is error in substantia?

Mistake as to the composition (not just quality) of the thing (e.g. bronze sold as gold) Disputed in classical period: Marcellus held sale valid if parties agreed on the object; Ulpian held void for fundamental compositional difference. Likely only operative for bona fide contracts in the classical period

What is the difference in how fraud (dolus) affected strict law vs. good faith contracts?

Strict law (stricti iuris): no automatic remedy for fraud. Late Republic introduced exceptio doli (defence of fraud) and actio doli (had to be explicitly pleaded in the formula) Good faith: judge directed to take good faith into account automatically (no explicit pleading needed) (Ulpian, Cicero)

What is the difference in how duress (metus) affected strict law vs. good faith contracts?

Strict law: originally valid even under duress; late Republic introduced exceptio metus (defence) and actio metus (penal action). Physical force negates consensus entirely. Good faith: duress automatically taken into account by the judge (Ulpian)

What is a nudum pactum and what does it produce?

A bare agreement that does not conform to any recognised specific contract. It produces no action (enforceable obligation), only an exceptio (defence) (Ulpian)

What is causa in Roman contract law?

The legal ground/ reason for enforcing an agreement- required for obligation. Harder to identify in consensual contracts where the cause lay in commercial necessity for recognition. Distinguished from common law consideration.

What is initial impossibility and what is its effect?

Where performance is already impossible at the time the contract is formed (whether physically or legally)= void obligation. Examples: stipulating for a free man believed to be a slave; for things outside private ownership; for a centaur. (Gaius, Modestinus, Celsus)

What is supervening impossibility and what is its effect?

Where performance becomes impossible due to events occurring after formation- outside the fault of either party and not while in mora (delay). Contract valid but unenforceable.

What is the Roman rule on privity of contract?

Obligations are strictly personal- one cannot bind or benefit a third party without their agreement.(Paul)

Promises made for TP benefit

If A promises B to do something for C, B cannot enforce unless B has a 'pecuniary interest' in performance. Justinian (following Proculians): promisee could claim half the sum; TP could claim nothing. Penal stipulations could circumvent this.

Promises binding TPs

If A promises B that C will do something- A not liable if C fails (unless agreed a penalty on that basis).

Could a stipulatio benefit a third party in Roman law?

Not directly- Sabinians: promisee could claim the whole sum. Justinian (following Proculians): promisee could claim half; third party could claim nothing. Penal stipulations could be used to circumvent the restriction- e.g. 'I promise to pay you X if C does not perform.’

What is the formula of the condictio and how does it differ from a good faith formula?

Condictio (strict law): instructs iudex to condemn if defendant 'ought… [at civil law]' to pay- focuses on formalities; equitable defences must be explicitly pleaded. Good faith formula (e.g. actio venditi): instructs iudex to condemn for whatever defendant 'ought… in good faith'- judge takes equitable considerations into account without explicit pleading.

What are illegal and contra bonos mores stipulations and what is their effect?

Contracts for illegal acts or against good morals are void. Examples: promise to commit murder or sacrilege. Tested by reference to statutes alleged to have been breached and contemporary standards of morality. (Ulpian)

What are the three verbal contracts?

Stipulatio, Dotis dictio, Iusiurandum liberti; all unilateral, stricti iuris.

What was dotis dictio?

A solemn pre-marriage declaration of dowry composition by the bride or her representative in the presence of the groom. Became obsolete in the late Empire. A verbal contract- unilateral and stricti iuris.

What was iusiurandum liberti?

A solemn oath taken by a freedman to render services to their patron. Usually preceded by an oath before manumission. Frequent use of stipulatio eventually made this oath infrequent. Unilateral and stricti iuris.

What is stipulatio and what are its essential formal requirements?

A formal promise made in response to a formal question. Unilateral, stricti iuris. Requirements: (1) oral Q&A- both parties must be able to speak and hear; (2) continuous transaction -no intervention or long break; (3) congruous Q&A- answer must match question; (4) both parties physically present- never relaxed even by Justinian

How did the language requirements of stipulatio change over time?

Archaic: only Latin spondesne/spondeo. Classical: expanded to include other verbal forms and other languages- if both parties understand each other, any language suffices (Ulpian). Leo's rescript (AD 472): any form of words valid so long as intention clear. Justinian confirmed: intention and mutual understanding matter, not formal words

What was the rule on ambiguity in stipulatio?

Ambiguous terms were construed against the stipulator- the party who framed the language, as they could have expressed their will more clearly. General principle also applied in sale: Labeo held obscure terms construed against the vendor.

What happened if the Q&A in stipulatio were incongruous as to amount?

If I stipulate 'ten' and you answer 'twenty' (or vice versa)- obligation arises only for ten, since ten is part of twenty. Both parties agree on at least ten. No obligation for the excess (Ulpian)

What was a cautio and what evidential role did written records play in stipulatio?

A cautio was a written record of a stipulation produced by the parties. The obligation still arose from the oral exchange, not the writing- evidentiary function only. Over time: rebuttable presumption that stipulation had been properly performed if the cautio alleged it. Justinian: if document showed parties were present, strong rebuttable presumption of presence- very high proof required to rebut; burden on the party alleging absence.

What two actions enforced stipulatio?

1. Condictio- used when stipulation was for a specific sum of money or a specific thing (certum). 2. Actio ex stipulatu- used when the stipulation was for something uncertain (incertum), e.g. interest, services, a promise to do something (Justinian)

What was a simple stipulation vs. an ex die stipulation?

Simple: immediate binding obligation. Ex die: obligation arises at once but only enforceable from a future certain date- promisor may perform early if they choose. Celsus: the whole intervening period is open for the debtor to pay.

What was a conditional stipulation and could the promisor prevent the condition being fulfilled?

Obligation suspended until an uncertain future event. Promisor could not revoke or deliberately prevent fulfilment- if he took steps to prevent the condition being satisfied, he remained bound nonetheless (Paul)

What was the rule on promises to perform 'when I die' vs. 'after my death'?

'When I die'= valid. Duty vests at the last moment of life and the heir inherits it. 'After my death'= void classically (began with the heir, breaching privity). Justinian changed this and allowed the obligation to begin in the heir.

What were compulsory praetorian stipulations and what was the sanction for refusing?

Promises made under legal compulsion= technically not true contracts. Judicial: imposed by iudex (e.g. cautio de dolo= promise to restore property without fraud). Praetorian: imposed by praetor (e.g. promise to indemnify neighbours for damage from dangerous property; promise to undo unlawful new work). Sanction for refusal: missio in possessionem- other party authorised to seize the refusing party's property (Pomponius)

What was stipulatio poenae?

A penalty clause- a promise to pay a fixed sum on breach of an obligation. Generally enforceable even if the penalty was excessive. Severity alone not a ground for non-application, though equitable rules came to be applied in limited cases. Frequently used in commerce to secure performance.

What was novation by stipulatio?

Terminating an existing obligation and replacing it with a new one via stipulatio. Could not be identical (classical law). Effect: new obligation more easily provable and enforceable. Could transform a bona fide obligation into a strict law one

Form of personal security (suretyship) in Roman law- sponsio

Sponsio=citizens only; limited to guaranteeing stipulatio obligations; 2-year limitation (Lex Furia c.200 BC); did not bind guarantor's heirs.

Form of personal security (suretyship) in Roman law- Fidepromissio

Fidepromissio also available to foreigners; same restrictions as sponsio.

Form of personal security (suretyship) in Roman law- Fideiussio

no limitation period; bound heirs; could guarantee any obligation; creditor could sue any guarantor for the full sum. The only form to survive to Justinian.

What was the beneficium divisionis and who introduced it?

Introduced by Hadrian. fideiussio = multiple guarantors, each entitled to claim that the debt be divided among all solvent guarantors- paid only their proportionate share. Previously the creditor could enforce the full debt against any single guarantor.

What was the beneficium cedendarum actionum?

Under Justinian: a surety could demand that the creditor assign their actions against the principal debtor to the surety before the surety paid. Allowed the surety to recoup from the principal debtor directly.

What actions did sureties use to recoup from the principal debtor?

Sponsors used the actio depensi (for double damages if not reimbursed within 6 months). Fideiussors used the actio mandati or negotiorum gestorum. Beneficium cedendarum actionum (Justinian): surety could demand assignment of the creditor's actions before paying.

What was the adstipulatio?

An accessory creditor arrangement — the debt already owed to one creditor was promised to a second creditor (accessory). The debtor could choose whom to pay. If the accessory creditor defrauded the principal, liability arose under the Lex Aquilia. Obsolete by the late Empire.

What was dispositive writing in Roman contract law?

Writing that itself creates the legal obligation — the contract is triggered by the document, regardless of the underlying transaction. E.g. a transcriptive entry (expensilatio) in a ledger creating a monetary obligation even if no money was actually paid. Authority: Gaius.

What was evidentiary writing in Roman contract law?

A record created to prove a prior event (e.g. a cash payment, a ceremony). The legal effect flows from the event, not the writing. E.g. nomina arcaria — cash-book entries of actual loans; the obligation was 'real' (re) arising from the payment of money, not the entry itself. Authority: Gaius.

What is a re in personam transcriptive entry?

A novation — an existing obligation (e.g. from sale or hire) is transformed into a general ledger debt owed by the same person. The entry extinguishes the old obligation and replaces it with a new strict law one. Authority: Gaius.

What is a persona in personam transcriptive entry?

A transfer of a debt from one person to another — 'cashless' transfer. E.g. A owes B £10 and B owes C £10 → replaced by a debt from A to C directly, cancelling the intermediate obligations. Authority: Gaius.

Could foreigners be bound by transcriptive entries?

Disputed. Proculians (Nerva): only Roman citizens could be bound — the obligation is iuris civilis. Sabinians (Sabinus & Cassius): foreigners also bound by a re in personam entries (novating an existing debt) but not by a persona in personam entries. Authority: Gaius.

What were nomina arcaria?

Cash-book entries recording actual loans made. Purely evidentiary — the obligation was 'real' (re), arising from the physical handing over of money, not from the ledger entry itself. Distinguished from nomina transcripticia (expensilatio). Authority: Gaius.

How did novating a bona fide obligation into a literal contract affect a creditor's position?

It transformed the obligation from good faith to strict law. The condictio replaced the good faith action. The debtor could no longer rely on the good faith of the original transaction as a defence without explicitly pleading the exceptio doli. Illustrated by the Pythius/Canius story: Pythius's fraud was beyond challenge once the sale was novated into the ledger, before the exceptio doli existed. Authority: Cicero, Gaius.

What was the Justinianic form of the literal contract?

Classical ledger entries had become obsolete. Justinian: a written acknowledgment of a fictitious loan (I.O.U.) bound the debtor if unchallenged within the limitation period. Enforced by condictio. Authority: Justinian.

What was the querela non numeratae pecuniae and how did the time limit change?

The defence of 'money not paid' — debtor could challenge the written acknowledgement of a loan, shifting the burden of proof to the creditor (lender must prove money was paid). Classical period: up to 5 years to raise the defence. Justinian reduced this to 2 years. After 2 years without challenge: the document became irrebuttable and acquired contractual force. Authority: Justinian.

What was the pre-contractual phase under Justinian's rules on written contracts?

Where parties intended a contract to be in writing, it had no force until documents were in final form and signed by both parties or a notary. Either party could withdraw or 'gazump' the other without penalty until final execution.

What was the arra rule under Justinian?

Where parties used earnest money (arra) to manage the risk of withdrawal in the pre-contractual phase: if the buyer withdrew — forfeited the deposit. If the seller withdrew — obliged to restore double the arra. After finalisation, normal regime of contractual damages applied. Birks' 'narrow view': arra rule specific to the pre-contractual phase. Authority: Justinian.

What was mutuum (loan for consumption) and what obligation did it create?

A unilateral, stricti iuris, gratuitous loan of fungible things — things identified by weight, number, or measure (money, wine, oil, grain, bronze, silver, gold). Ownership transferred to the borrower. Borrower obliged to return an equivalent quantity and quality. Obligation arose on delivery. Authority: Gaius, Paul, Pomponius.

What was the etymology of mutuum according to Paul?

Paul derived mutuum from meum and tuum — 'what is mine becomes yours (ex meo tuum).' Gaius confirms: the lender gives so as to make his property the borrower's property. Authority: Paul, Gaius.

What action enforced mutuum and what were the borrower's obligations?

The condictio — enforced by the lender to recover an equivalent sum or quantity. Unilateral — lender had no contractual duties. Borrower's obligation to restore was not discharged by loss or theft of the thing (stricti iuris). Even without express provision, the borrower could not return inferior quality goods. Authority: Pomponius, Gaius.

What were the rules on interest in mutuum?

Mutuum itself was gratuitous — no interest inherent in the contract. Interest agreed separately by stipulatio. Classical maximum: 12% p.a. Justinian: 6% for commercial loans; 4% for private loans. Maritime loans: uncapped while ship at sea (lender bears the risk); Justinian fixed at 12%. Authority: Paul, Justinian (C.4.32.26).

What was the Senatus Consultum Macedonianum and what did it prohibit?

Second half of 1st century CE. Instructed the praetor to refuse actions on loans made to sons-in-power (filii familias), even after they became independent (sui iuris). Aimed to prevent exploitation and remove the incentive for sons to murder their fathers to escape debts. Jurists construed it narrowly. Authority: Ulpian.

What were the exceptions to the Senatus Consultum Macedonianum?

1. Paterfamilias had consented to the loan. 2. Lender honestly believed borrower was not in power. 3. Borrower had peculium castrense or quasi castrense. 4. Borrower acknowledged the loan on becoming sui iuris. Authority: Ulpian.

What was commodatum (loan for use) and how did it differ from mutuum?

Bilateral, bonae fidei, gratuitous loan of a corporeal thing for use. Ownership remained with the lender. Borrower received only physical control (detentio) — not ownership or possession. Thing to be returned at the end of the loan. Mutuum: ownership transferred, fungibles consumed. Commodatum: ownership stays with lender, non-fungibles (or fungibles used for display) returned in specie. Authority: Justinian, Paul, Marcellus.

Who could be a lender in commodatum?

No requirement that the lender owns the thing — the lender need only have physical control. Even a thief or robber who lends can bring the actio commodati directa. Because the borrower receives only detentio, usucapio is not interrupted. Authority: Pomponius, Ulpian, Paul, Marcellus.

What actions enforced commodatum?

Actio commodati directa — lender against borrower, to enforce return of the thing and payment for damage. Actio commodati contraria — borrower against lender, to recover abnormal/exceptional expenses incurred in relation to the thing.

What was custodia in commodatum?

A high standard of safekeeping — the borrower was absolutely liable for types of accidents regarded as avoidable by properly watching and guarding the thing. Non-violent theft was regarded as preventable → borrower liable even if TP stole the thing. Borrower had actio furti against the thief. Only vis maior (overwhelming force) excused. Authority: Ulpian, Schulz.

What was the standard of care in commodatum when the loan was for the benefit of the borrower?

Borrower: liable for culpa (fault) and custodia. Standard: diligentissimus paterfamilias — very careful head of household. Lender: liable only for dolus (wilful harm — e.g. knowingly lending defective containers). Authority: Gaius.

What was the standard of care in commodatum when the loan was for the benefit of the lender?

Borrower: liable only for dolus (wilful harm). Lender: liable for damage caused by defects he ought to have known about. Examples: loan of dress to fiancée to look dignified at presentation to him; loan to actors by a praetor putting on games. Authority: Ulpian.

What was the standard of care in commodatum for joint benefit loans?

Debate: some texts say borrower liable only for dolus; Gaius questions whether culpa should also be imposed (as with pignus or dowry). The borrower's standard of care was adjusted to what he shows in his own affairs. Authority: Gaius.

What happened if the borrower in commodatum used the thing outside the agreed purpose or was in mora?

Liable for every disaster (omne periculum) regardless of fault — even vis maior type events would not excuse if the use was unauthorised. Also liable for theft (furtum usus) unless honestly believed the lender would have consented. Authority: Ulpian, Julian.

What were the rules on third-party theft in commodatum?

Non-violent theft was not vis maior → borrower liable for failing to restore if TP stole. Borrower had the actio furti against the thief (negative interest). If borrower insolvent, lender could bring actio furti against thief. Justinian: lender's choice of suing borrower or thief was elective; if lender sued thief, borrower relieved of liability under the contract. Authority: Justinian.

What was depositum (deposit) and what was the depositee's position?

Imperfectly bilateral, bonae fidei contract. A movable thing handed over for gratuitous safekeeping. Must be entirely for the benefit of the depositor. Depositee received neither ownership nor possession — only detentio. Depositee had to return the thing on demand in substantially the same condition, with any accretions. Ulpian, Justinian.

What was the default standard of care in depositum?

Liability only for dolus (wilful harm). Justinian: depositee safe even if insufficiently careful and the thing is stolen by a thief — blame falls on the depositor for entrusting to a negligent person. If remunerated → hire (locatio conductio) not deposit. Authority: Ulpian, Justinian.

What was culpa lata in depositum and how did Celsus treat it?

Gross fault (culpa lata) — some jurists equated it with dolus. Celsus: the depositee is not free from dolus if he shows less care in relation to the deposited thing than he customarily shows in his own affairs (quam suis rebus). Good faith requires at least the care one shows for one's own property. Celsus.

What actions lay in depositum and what was the penalty for breach?

Actio depositi directa — depositor against depositee. If depositee found in breach: infamia (disgrace) and payment of damages. Actio depositi contraria — depositee against depositor for recovery of expenses. Right to retain thing as set-off for unpaid expenses (abolished by Justinian). Ulpian.

What were the double damages rules for necessary deposit (depositum necessarium)?

Where the deposit was made under compulsion — fire, shipwreck, tumult, disaster — the praetor granted double damages against the depositee for breach. The emergency context makes betrayal of trust particularly harmful to the public interest. Authority: Ulpian.

What was depositum irregulare?

A deposit of fungibles (usually money, to a banker) where ownership transferred to the depositee with a corresponding obligation to return an equivalent amount. Similar to mutuum, but primarily for the benefit of the depositor (custodian rather than borrower). Whether possible in the classical period is disputed. Interest could be agreed by informal pact attached to the deposit.

What was sequestratio?

A special form of deposit- property that is the subject of a dispute between two or more parties is deposited with a third party pending the outcome of litigation. The depositee received legal possession (not merely detentio)- this prevented usucapio from running in anyone's favour during the dispute. Applicable to both land and moveables.

What was pignus (pledge) and who received possession?

Bilateral, bonae fidei contract. Borrower (pledgor) transfers possession of property (land or moveables) to creditor (pledgee) as security for a loan. Pledgee received legal possession but not ownership. Sometimes agreed that pledgor retained physical control in practice. Ulpian.

What was the standard of care expected of the pledgee in pignus?

Liable for both dolus (wilful harm) and culpa (fault)= same standard as commodatum. Standard: bonus paterfamilias. If pledgee mistreated pledged property → pledge discharged immediately. Example: putting a pledged slave-girl to prostitution discharged the pledge 'on the spot.' Ulpian.

What actions lay in pignus?

Actio pigneraticia directa=pledgor against pledgee (to recover the res once debt satisfied). Actio pigneraticia contraria=pledgee against pledgor (for expenses and to enforce debt). Pledgor could only bring actio pigneraticia once the debt was paid in full or he was ready to satisfy it. Ulpian.

What happened if the pledgor failed to repay the debt in pignus?

Pledgee entitled to retain possession. Classical period: implied right of pledgee to sell the property to satisfy the debt- must account for any surplus to pledgor. 'Automatic foreclosure' (automatic transfer of ownership on default) had to be expressly agreed and was eventually banned by Emperor Constantine.

What priority rules applied in pignus and hypothec?

First in time prevails= prior tempore potior iure. The creditor who first lent money and took a mortgage is preferred, even if a subsequent agreement to mortgage was made earlier. Late Empire: priority for formally registered charges, or automatic priority (e.g. wife's implied mortgage for dowry). Failure to disclose existing charges became criminal. Authority: Gaius.

What was hypothec and how did it differ from pignus?

Modified form of pignus= borrower retained both ownership and possession, promising rights to the creditor only if the debt remained unpaid. No transfer of possession required. Mainly used for mortgages of land; applicable to moveables. Same property could secure multiple loans (rank by time).(Gaius) Similar to an English 'floating charge' over future assets.

What remedies applied specifically to hypothec- Interdictum Salvianum

Interdictum Salvianum (Republic)= landlord's remedy to take possession of farm tenant's equipment pledged as security for rent, based on agreement alone (no prior delivery needed).

What remedies applied specifically to hypothec- Actio Serviana &Actio quasi-Serviana (hypothecaria)

Actio Serviana= allowed landlord to recover property even from third parties. Actio quasi-Serviana= generalised in the Principate to any creditor with consensual security over land or moveables; an actio in rem available against anyone holding the property.

Compare fiducia, pignus, and hypothec as forms of real security.

Fiducia: borrower transferred ownership to creditor by formal conveyance (e.g. mancipatio); creditor promised to re-convey once debt paid; borrower sacrificed ownership. Pignus: borrower retained ownership but transferred possession; creditor had rights in rem but was not owner. Hypothec: borrower retained both ownership and possession; creditor's right arose only on default; most flexible — allowed multiple charges and security over future assets.

What was Birks's view on the meaning of 're' in real contracts?

Birks argued that 're' should be taken to mean 'by conduct' rather than 'by the thing.' Real contracts are concerned only with the obligations arising after the handing over- the loan, deposit, etc.- not with the business of lending or depositing itself. The obligation arises at the moment of delivery.

What are the four genera of obligations arising from contract (Gaius and Justinian)?

Re (real)= obligation created by delivery of a thing. 2. Verbis (verbal)=obligation created by spoken words. 3. Litteris (literal)= obligation created by writing. 4. Consensu (consensual) =obligation created by mere agreement (sale, hire, partnership, mandate) (Gaius, Justinian)