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Arbitration

Provenance decisions

A few anonymised TAO decisions on provenance: inheritances, old thefts, spoliations and equitable solutions.

Updated : October 28, 2026· 3 min read

What the arbitrators decided

Seal Color Box (1662–1722)
Seal Color Box (1662–1722)

Provenance decisions are among the most delicate: they involve family histories, sometimes collective ones. This page summarises four anonymised cases, adapted to guarantee confidentiality, and draws practical lessons from them.

Each sheet gives the facts, the question raised, the outcome and the lessons. For the full texts, see the decision database.

These cases illustrate a constant point: the tribunal seeks first the historical truth, then the equitable solution.

  • Decisions
  • Provenance
  • Restitution

Provenance decisions in figures

90Decisions published
44%Amicable agreements
31%Restitutions ordered
14 monthsAverage duration

Source: Registry of the OIMAP Arbitral Tribunal.

Breakdown

Restitution31%
Compensation25%
Dismissal20%
Agreement24%

Outcomes of provenance disputes.

Case 1: the inherited painting

Two branches of a family were disputing a painting left without a will. One had put it up for sale, the other opposed. The tribunal reconstructed the succession, established the rights of each and ordered the price to be shared after sale, with a right of first offer for the family.

Lesson: international successions are better settled by a global solution than by a strict application of the law. Mediation had failed for lack of decision-making power of one of the heirs.

The Calumny of Apelles, Giorgio Ghisi (1560)
The Calumny of Apelles, Giorgio Ghisi (1560)
Seven Jeweled Mountain (late 1800s)
Seven Jeweled Mountain (late 1800s)
The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)
The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530)

Case 2: the spoliated sculpture

A sculpture reappearing in a sale had been confiscated from a collector in 1941. The current buyer, in good faith, had bought after a serious but incomplete search. The tribunal found spoliation, ordered restitution to the heirs, and awarded the buyer compensation of a third of the value, payable by the seller.

Lesson: in the case of proven spoliation, restitution prevails even over long possession. The buyer's diligence influences compensation.

Cases 3 and 4: old theft and doubtful title

In a case of old theft (1978), the owner had not reported the theft and the work had changed hands three times. The tribunal applied the limitation period of the chosen law and dismissed the claim, but noted the fault of the original seller and ordered the seller to pay compensation to the buyer.

In a case of doubtful title, a museum and a collector claimed the same ceramic. An agreement resulted in a long-term loan, ownership remaining with the collector. This solution allowed the work to be exhibited without settling the question of origin.

Role of symbolic reparation

Beyond material questions, many families seek recognition: a mention of the spoliation in the catalogue, display of the work's history, a commemorative plaque. The tribunal may build such measures into the award or agreement.

They contribute to lasting reparation and help bring the dispute to an end. Institutions holding works concerned are increasingly attentive to this.

Four outcomes

Four cases
CaseOutcomePrinciple
InheritanceSharing of the priceEquity among heirs
SpoliationRestitution and compensationPrimacy of justice
Old theftDismissal by limitationSecurity of trade
Doubtful titleLong-term loanCreative solution

Milestones

  1. First provenance decision

    Succession.

  2. Spoliation

    Restitution.

  3. Long-term loan

    Creative solution.

  4. 90 decisions

    Substantial case law.

Cases, not rules

Carnet (1863–1865)
Carnet (1863–1865)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)
Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840)
Arrival of the "Southern Barbarians" (c. 1600)
Arrival of the "Southern Barbarians" (c. 1600)

Restitution or negotiated solution

The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855)

Restitution

Return to the owner
  • Historical justice
  • Sometimes indispensable
  • Buyer sometimes compensated

Proven spoliation.

Plaque (1500s–1600s)

Negotiated

Compromise
  • Fast
  • Flexible
  • Respects the work

When the rights are uncertain.

Drawing lessons

  1. Research

    Complete provenance.

  2. Document

    File.

  3. Dialogue

    Mediation.

  4. Decide

    Arbitration.

  5. Enforce

    Restitution.

Lessons

An arbitrator

Mercury (Budha), from a Mandi Astrology Series, Sanju (c. 1810)
« What struck me most is that the parties often seek recognition rather than victory. »
Pr. Isabelle Cornet, arbitrator, provenance chamber

Vocabulary of decisions

Spoliation
Forced dispossession.
Sharing
Distribution among rightful claimants.
Long-term loan
Making available for several years.
Compensation
Sum paid by way of reparation.

Frequently asked questions

Are the cases real?

They are adapted from real, anonymised decisions.

Are there restitution decisions?

Yes, see the dedicated section.

May I cite them?

Via the database.

Where can I see restitution?

Useful documents

Contacts

Small Mosque in the Kaiserbagh, Felice A. Beato (1858)
Small Mosque in the Kaiserbagh, Felice A. Beato (1858)
Registry of the Arbitral Tribunal (TAO)Paris — Head Office+33 1 00 00 04 00greffe.tao@oimap.exampleMonday to Friday, 9 a.m. – 5 p.m.

See restitution disputes

Dune Scene with Peasant Figures, Willem van de Velde (mid-1650s)

Cultural property and States.

Restitution disputes
Image credits (16)
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