• About
    • Mission
    • Team
    • Boards
    • Mentions & Testimonials
    • Institutional Recognition
    • Annual Reports
    • Current & Past Sponsors
    • Contact Us
  • Resources
    • Article Collection
    • Podcast: Art in Brief
    • AML and the Art Market
    • AI and Art Authentication
    • Newsletter
      • Subscribe
      • Archives
      • In Brief
    • Art Law Library
    • Movies
    • Nazi-looted Art Restitution Database
    • Global Network
      • Courses and Programs
      • Artists’ Assistance
      • Bar Associations
      • Legal Sources
      • Law Firms
      • Student Societies
      • Research Institutions
    • Additional resources
      • The “Interview” Project
  • Events
    • Worldwide Calendar
    • Our Events
      • All Events
      • Annual Conferences
        • 2026 Art Law Conference
        • 2025 Art Law Conference
        • 2024 Art Law Conference
        • 2023 Art Law Conference
        • 2022 Art Law Conference
        • 2015 Art Law Conference
  • Programs
    • Visual Artists’ Legal Clinics
      • Art & Copyright Law Clinic
      • Artist-Dealer Relationships Clinic
      • Artist Legacy and Estate Planning Clinic
      • Visual Artists’ Immigration Clinic
    • Summer School
      • 2026
      • 2025
    • Internship and Fellowship
    • Judith Bresler Fellowship
  • Case Law Database
  • Log in
  • Become a Member
  • Donate
  • Log in
  • Become a Member
  • Donate
Center for Art Law
  • About
    About
    • Mission
    • Team
    • Boards
    • Mentions & Testimonials
    • Institutional Recognition
    • Annual Reports
    • Current & Past Sponsors
    • Contact Us
  • Resources
    Resources
    • Article Collection
    • Podcast: Art in Brief
    • AML and the Art Market
    • AI and Art Authentication
    • Newsletter
      Newsletter
      • Subscribe
      • Archives
      • In Brief
    • Art Law Library
    • Movies
    • Nazi-looted Art Restitution Database
    • Global Network
      Global Network
      • Courses and Programs
      • Artists’ Assistance
      • Bar Associations
      • Legal Sources
      • Law Firms
      • Student Societies
      • Research Institutions
    • Additional resources
      Additional resources
      • The “Interview” Project
  • Events
    Events
    • Worldwide Calendar
    • Our Events
      Our Events
      • All Events
      • Annual Conferences
        Annual Conferences
        • 2026 Art Law Conference
        • 2025 Art Law Conference
        • 2024 Art Law Conference
        • 2023 Art Law Conference
        • 2022 Art Law Conference
        • 2015 Art Law Conference
  • Programs
    Programs
    • Visual Artists’ Legal Clinics
      Visual Artists’ Legal Clinics
      • Art & Copyright Law Clinic
      • Artist-Dealer Relationships Clinic
      • Artist Legacy and Estate Planning Clinic
      • Visual Artists’ Immigration Clinic
    • Summer School
      Summer School
      • 2026
      • 2025
    • Internship and Fellowship
    • Judith Bresler Fellowship
  • Case Law Database
Home image/svg+xml 2021 Timothée Giet Our articles image/svg+xml 2021 Timothée Giet Case Review image/svg+xml 2021 Timothée Giet Case Review: Cassirer et. al. v. Thyssen Bornemisza Collection Foundation (2022)
Back

Case Review: Cassirer et. al. v. Thyssen Bornemisza Collection Foundation (2022)

May 27, 2022

by Anissa Patel

Overview

Since 1993, Rue Saint-Honoré, après-midi, effet de pluie[1], an oil painting by the French impressionist master Camille Pissarro has been hanging at the Thyssen-Bornemisza Collection Foundation’s Museum (the “Museum”) located in Spain.[2] The painting was originally purchased in 1898 by Julius Cassirer, a member of a wealthy Jewish family once living in Germany. [3] Since the original purchase by Cassirer, the Rue Saint-Honoré has been in possession by a number of different owners and institutions. For over 40 years, the painting remained in the Cassirer family until Lilly Cassirer, the widow of Julies Cassirer’s son Fritz was forced to sell the painting to the Nazis in 1939.[4]

As persecution of Jews living in Nazi Germany increased, Lilly and her husband had to seek permission by German authority to take their possessions when fleeing the country, which included the painting. [5] Although before granting permission, the Nazi government enlisted the assitance of an art dealer named Jakob Scheidwimmer to appraise the painting. [6] After appraisal, Scheidwimmer refused to allow Lilly to take the painting out of the country and demanded that she sell it to him for $360. Out of fear of being unable to leave Germany, Lilly complied. [7] She never received the funds that were promised. [8]

The painting was eventually smuggled into the U.S. after the war and subsequently sold by a Beverly Hills gallery in 1951.[9] From there, the painting was purchased by Baron Hans Heinrich von Thyssen-Bornemisza, a Swiss art collector and the heir to a German steel empire. [10] In 1993, Thyssen-Bornemisza sold his collection of more than 775 paintings for $340 million to Spain. [11] The paintings were to be exhibited at the Thyssen-Bornemisza Collection Foundation’s Museum, a then newly developed museum in Madrid. [12]

Upon her death, Lilly Cassirer left the rights of the painting to her grandson Claude Cassirer. Claude Cassirer had been searching for the painting “that [once] hung on the wall of his grandmother Lilly’s apartment in Berlin” for decades. [13] In 2000, Cassirer received a phone call from an acquaintance that the painting that he and his wife had been searching for had finally been found hanging in a Spanish museum. He then petitioned  Spain’s Minister for Education, Culture and Sports (who was also the chair of the Foundation’s Board), requesting the return of the painting.[14] His request was denied.[15] In 2005, he then filed a suit in a federal court in Los Angeles to recover the painting, now valued at $30 million.[16] The lawsuit originally filed by Cassirer in 2005 has managed to span almost 20 years, finding its way to the highest court in the United States. On January 18, 2022 the Supreme Court heard a last-chance appeal from the Cassirer family to have the painting returned to them from Spain.[17]

Court Ruling

On April 22nd, 2022, in a unanimous ruling on procedural issues, the Supreme Court ruled in favor of the heirs of Cassirer.[18] The final opinion from Supreme Court Justice Elena Kegan stated that “a court should determine the substantive law by using the same choice-of-law rule applicable in a similar suit against a private party.”[19] This decision establishes that in an ownership dispute between two separate countries, the applicable choice-of-law rule that the court should apply is not the one in which the defendant was a foreign-state actor, but instead a private party.[20]

Ultimately, the question at the heart of this case was one of ownership, and whether Claude Cassirer was the rightful owner of the painting that once belonged to his grandmother, Lilly Cassier. However, the numerous transfers of the painting over the span of decades complicated the case. The main issue reviewed by the Supreme Court was whether the lower federal courts used the correct law when they decided the case originally.[21] The Thyssen-Bornemisza Collection Foundation claimed that the federal district court was correct to apply the Spanish doctrine of “acquisition prescription”, which transfers ownership after six years of passion if the possessor did not actually know the property was stolen.[22] However, the heirs of the painting argued that in the same manner that if the government museum “were a private museum”, California’s choice of law rules would apply, which would result in the Thyssen-Bornemisza Collection Foundation being liable in the same manner as a private museum.[23]

Claude Cassirer had originally filed the action in federal district court against the Kingdom of Spain and the Thyssen-Bornemisza Collection Foundation to recover the Pissarro once owned by his grandmother.[24] In the original court document, Cassirer alleged that the painting was taken from his grandmother in violation of international law in 1939 by an agent of the government of Nazi Germany. [25] However, the district court motioned to dismiss the complaint because it determined that the case was out of its personal jurisdiction, there was lack of standing, and because there was an issue of jurisdiction based on sovereign immunity. [26]

In 2009, the United States Court of Appeals for the Ninth Circuit dismissed an appeal by Cassirer regarding challenges to personal jurisdiction, standing, and the existence of a justiciable case or controversy. In addition, the Court stated that it lacked appellate jurisdiction because there had been no final judgment, and because the issues at hand were not “immediately appealable under the collateral order doctrine.” [27] However, the appellate court did state that under the collateral order doctrine, it had the jurisdiction to consider the issue of sovereign immunity.[28] The court held that the expropriation exception of the Foreign Sovereign Immunities Act (“FSIA”)[29] does in fact apply when the foreign state is not the entity that expropriated the property in violation of international law. In sum, while the appeal was dismissed with regards to the issues of personal jurisdiction, standing, and Article III case or controversy, the appeal agreed with the district court that the Foundation engaged in “sufficient” commercial activity within the “U.S.”. Essentially, the museum was not protected under the FSIA because the law has an “expropriation exception” for property confiscated in violation of international law.[30]

U.S. District Judge John Walter applied Spanish law and confirmed in the 2019 trial that while the Thyssen-Bornemisza Collection Foundation “may have been irresponsible” in failing to investigate the history of the painting, the museum lacked “actual knowledge” that the work was stolen. [31] The Supreme Court reviewed the heirs’ challenge of the trial court’s use of federal common law instead of selecting Spanish law for the case.[32] The Thyssen-Bornemisza Collection Foundation was asking the Supreme Court to choose the substantive “federal common law” in which a foreign state is sued. During trial, David Boies, the heirs’ lawyer stated that because Thyssen-Bornemisza Collection Foundation is not immune, the text of the FSIA makes it “liable to the same manner and to the same extent as a private individual under similar circumstances.” In addition, the justices “repeatedly questioned the Thyssen-Bornemisza Collection Foundation’s position”.[33] Justice Clarence Thomas stated, “I don’t quite understand how a sovereign can be treated the same as a private individual if you don’t use the same choice of law rules.” [34]

TAKEAWAY

The Supreme Court’s decision that California choice of law rule applies paves the way for Cassirer’s heirs to ask the California appeals court to undo the lower court’s choice to follow Spanish law and apply California law instead—under which a thief cannot convey good title. Applied to this case, this means that the Nazi, who had acquired the painting by theft or force, could not convey good title to any other person. Following this logic, Cassirer’s heirs would be the legal owners of the painting.

The decision by the Supreme Court in favor of the heirs of Cassier will undoubtedly have broad implications for the art world, specifically for future actions that involve ownership claims between individuals and foreign governments.

ABOUT THE AUTHOR

Anissa Patel was a Spring 2022 Legal Intern at the Center for Art Law. She just recently received her J.D. degree from Tulane Law School in New Orleans.

  1. The “Painting”in French. ↑
  2. Cassirer v. Kingdom of Spain, 580 F.3d 1048 (9th Cir. 2009), on reh’g en banc, 616 F.3d 1019 (9th Cir. 2010) ↑
  3. Id. ↑
  4. Id. ↑
  5. Id. ↑
  6. Id. ↑
  7. Id. ↑
  8. Id. ↑
  9. David D. Savage, Supreme Court hears Californians’ claim to painting taken by Nazis, sold to museum, (January 18, 2022) https://www.latimes.com/politics/story/2022-01-18/supreme-court-hears-california-familys-claim-to-painting-taken-by-nazis-sold-to-museum ↑
  10. Id. ↑
  11. Id. ↑
  12. Id. ↑
  13. Id. ↑
  14. Supra note 2. ↑
  15. Id. ↑
  16. Supra note 9. ↑
  17. Id. ↑
  18. Cassirer v. Thyssen-Bornemisza Collection Foundation, 596 U.S. (9th Cir. 2022) ↑
  19. Id. ↑
  20. Id. ↑
  21. Martha Lufkin, In US Supreme Court hearing over Nazi-looted Pissarro, justices question Spanish museum’s position, (January 18, 2022) https://www.theartnewspaper.com/2022/01/18/us-supreme-court-cassirer-pissarro-nazi-loot-hearing ↑
  22. Id. ↑
  23. Id. ↑
  24. Supra note 2. ↑
  25. Id. ↑
  26. Id. ↑
  27. Id. ↑
  28. Id. ↑
  29. Supra note 9. “The state-owned museum sought to have the suit thrown out based on the Foreign Sovereign Immunities Act of 1976, which usually protects foreign governments from being sued.” ↑
  30. Id. ↑
  31. Supra note 9. ↑
  32. Id. ↑
  33. Id. ↑
  34. Id. ↑

Disclaimer: This article is for educational purposes only and is not meant to provide legal advice. Readers should not construe or rely on any comment or statement in this article as legal advice. For legal advice, readers should seek a consultation with an attorney.

Post navigation

Previous Legacy and Lawsuits: An Overview of the Robert Indiana Estate Court Battles
Next Appropriation Art on Trial: Oral Arguments before the Supreme Court in Warhol v. Goldsmith

Related Art Law Articles

Screen shot from Google scholar of different Warhol cases
Art lawCase ReviewArt Law

Degrees of Transformation: Andy Warhol’s 102 minutes of fame before the Supreme Court

November 17, 2022
Art lawArt Law

“Outsider Artists” and Inheritance Law: What Happens to an Artist’s Work When They Die Without a Will?

November 11, 2022
Art lawCase ReviewArt LawCase Review

Case Review: US v. Philbrick (2022)

November 7, 2022
AML Guide 2025

AML Guide 2025

Explore our updated AML Survey with key insights on how evolving regulations impact the art market.

Download here
Center for Art Law

Follow us on Instagram for the latest in Art Law!

As AI enters all parts of the legal sector, it has As AI enters all parts of the legal sector, it has also been implemented in Alternative Dispute Resolution mechanisms. The American Arbitration Association and the International Centre for Dispute Resolution recently introduced the "AI arbitrator" in November 2025. 

The process is relatively simple, though it remains reserved for construction cases and subject to the review of a human arbitrator. The tool was created to offer more cost- and time-efficient options. The question remains, if current ADR AI tools can be envisioned in art law disputes, particularly given the individualistic features of art law claims and how they may, or may not, be addressed through the use of AI in ADR procedures

📚 Click the link in our bio to read the full article by Marina Rastorfer!

#centerforartlaw #artlaw #legal #artlawyer #legalreserach #ailaw #aiart #adr #alternativedisputeresolution
Don't miss our upcoming conversation with Dr. Rubi Don't miss our upcoming conversation with Dr. Rubina Raja, Professor of Classical Archaeology and Art at Aarhus University, as she presents contemporary, collaborative approaches to combating the illicit trade in antiquities, with a particular focus on Palmyra (Tadmor), Syria.

Drawing on the historical relationship between collecting and looting, the discussion will highlight the Palmyrene Portrait Project, a corpus of over 4,000 funerary portraits from Palmyra compiled by Dr. Raja and her team since 2012. The project serves as a critical record of material that, in many cases, remained in situ prior to the outbreak of the Syrian Civil War.

Before its inception, this body of material had not been treated as a unified corpus, nor systematically digitized. Today, the project stands as both the largest corpus of individual Roman period portraits from a single urban context and an essential scholarly and practical tool for identifying objects from Palmyra as they emerge on the art market.

Please note this event will not be recorded. 

🎟️ Get tickets now using the link in bio!

#centerforartlaw #arlaw #artlawyer #legalresearch #culturalheritage #artcrime #antiquities
Recently some artist estates have loosened fair us Recently some artist estates have loosened fair use policies for non-profits. The Robert Rauschenberg Foundation is one such example. In an effort to promote Rauschenberg's work over short-term revenue gain, it implemented one of the first fair use policies for certain museums before widening it to the public at large. 

Artist engagement levels did increase, but the policy brought up other issues, including distinguishing non-profit from for-profit uses. 

📚 Click the link in our bio to read more in our article by Josie Goettel!

#centerforartlaw #artlaw #artlawyer #legalresearch #art #artistissues #artistestates #museumissues #iplaw #copyright #ip
Meet our stellar line up of speakers! Thomas Stau Meet our stellar line up of speakers!

Thomas Stauffer | Partner, Gerber & Stauffer Fine Arts; President, Swiss Art Trading Association @thomstauffer 

Stefan Puttaert | CEO, Nicola Erni Collection @stefanputtaert @nicolaernicollection 

Alana Kushnir | Founder & Principal, Aurelian Lawyers & Advisers @aurelianlawyersandadvisers 

Will Korner | Head of Fairs, TEFAF @willkorner 

Pascal Robert | Founder, Pascal Robert Gallery @pascalrobertgallery 

Irina Tarsis | Founder, Center for Art Law, Moderator

▪️See you this Saturday, June 13 | 11:30–13:00
Auditorium Willy G.S. Hirzel, Landesmuseum Zurich
Free & open to the public

▪️Official part of @zurichartweekend programme
June! Roses are in bloom, summer interns have comp June! Roses are in bloom, summer interns have completed two weeks of orientation and research, and the world is heating up. As we wrap up after the Summer School, with much gratitude to our faculty and students, and digest the Copyright Law Conference takeaways, we cannot wait for our panel discussion Art Markets & the World in Transition (what is not?!) during the Zurich Art Weekend (in town on June 13th? Join us!), and look forward to sharing new research and articles with you posthaste. 

Make sure to subscribe to our newsletter to get all of these updates and more! 

📚 Click the link in our bio to get a curated collection of art law news, our most recent published articles, upcoming events, and much more!!

#centerforartlaw #artlaw #artlawyer #lawyer #artissues #newsletter #june #legalresearch
In this episode of Art in Brief, Andrea and Paris In this episode of Art in Brief, Andrea and Paris speak with Will Korner, founder and director of the Cultural Heritage At Risk Database Foundation (CHARD). 

From conflict zones to disaster-stricken regions, Will discusses how documentation, collaboration, and technology can help safeguard the objects and stories that connect us to our shared past from illicit trade. He also explains how CHARD’s database can be used to cross-check whether stolen or missing cultural objects are appearing on the art market, including at auction, and what is at stake when these irreplaceable pieces of heritage are lost. 

🎙️ Check out the podcast anywhere you get your podcasts using the link in our bio! 

#centerforartlaw #artlaw #artlawyer #podcast #legal #research #legalresearch #newepisode #artmarket #culture #artcrime
Despite the passage of multiple anti-money launder Despite the passage of multiple anti-money laundering laws in the U.S. over the past two decades, the art market is still considered the "largest legal unregulated industry." Its perceived lax regulatory regime and various industry-specific factors, makes high-value art an attractive tool for laundering criminal proceeds. 

The rise in laundering through high-value art is mainly attributed to the high-dollar transactions values, the ease of transporting artwork across borders, the market's longstanding culture of privacy, and art's evolution as a financial asset. That said, the art market is not entirely unregulated. As this article shows, other mechanisms — including industry self-regulation, public pressure from high-profile litigation and settlements, and sanction laws — provide a certain regulatory structure.

📚 Click the link in our bio to read more!

#centerforartlaw #artlaw #legal #artlawyer #legalreserach #artmarket #AML #internationallaw #lawyer #artcrime #money
10 DAYS TO GO - MARK YOUR CALENDARS! Saturday, Ju 10 DAYS TO GO - MARK YOUR CALENDARS!

Saturday, June 13 | 11:30–13:00
Auditorium Willy G.S. Hirzel, Landesmuseum Zurich
Free & open to the public

With big gratitude to our sponsors, we look forward to welcoming you at the event!
📍June 13, 11:30 - 13:00 | Auditorium Willy G.S. Hi 📍June 13, 11:30 - 13:00 | Auditorium Willy G.S. Hirzel, Landesmuseum Zurich 

Free & open to the public

This June, as part of the official program of @zurichartweekend, we are bringing together some of the sharpest minds in the international art world for a candid conversation on what’s reshaping collecting today.

▪️Art Markets and the World in Transition: Frameworks Shaping Global Collecting

Geopolitics. Tariffs. AML regulation. Taxes. The rules of the art market are changing as fast as your news feed, and this panel is where experts unpack what that means for collectors, gallerists, and art lovers.

Speakers: 

Will Korner (TEFAF) · Alana Kushnir (Aurelian Lawyers & Advisers) · Pascal Robert (Pascal Robert Gallery) · Stefan Puttaert (Nicola Erni Collection) · Thomas Stauffer (SATA) ·  Irina Tarsis, Esq. (Center for Art Law, moderator)

The event sponsors to be announced soon! 

Link in bio to save your spot 🔗

#ZurichArtWeekend #ArtLaw #ArtMarket #Collecting #ZAW2026 LandesmuseumZürich CenterForArtLaw ArtAndLaw CrossBorderCollecting
Join the Center for Art Law for a conversation wit Join the Center for Art Law for a conversation with Dr. Rubina Raja, Professor of Classical Archaeology and Art at Aarhus University, as she presents contemporary, collaborative approaches to combating the illicit trade in antiquities, with a particular focus on Palmyra (Tadmor), Syria.

Drawing on the historical relationship between collecting and looting, the discussion will highlight the Palmyrene Portrait Project, a corpus of over 4,000 funerary portraits from Palmyra compiled by Dr. Raja and her team since 2012. The project serves as a critical record of material that, in many cases, remained in situ prior to the outbreak of the Syrian Civil War. 

Before its inception, this body of material had not been treated as a unified corpus, nor systematically digitized. Today, the project stands as both the largest corpus of individual Roman period portraits from a single urban context and an essential scholarly and practical tool for identifying objects from Palmyra as they emerge on the art market. 

🎟️ Get tickets now using the link in bio!

#centerforartlaw #arlaw #artlawyer #legalresearch #culturalheritage #artcrime #antiquities
On October 6, 2025, the Flemish Government announc On October 6, 2025, the Flemish Government announced plans to transform the Museum of Contemporary Art Antwerp (M HKA) into an art center — a change that would make the institution lose its legal museum status and transfer its collection to the Stedelijk Museum voor Actuele Kunst in Ghent. Losing this status will have huge legal, financial, and cultural repercussions for the M HKA. 

This decision raised strong reactions from the art world, denouncing the false administrative logic behind this reorganization, which, according to the Flemish Minister of Culture, aims to strengthen collaboration and coherence within the cultural landscape. How does this transfer truly impact the Belgian artistic landscape — and does it really contribute to any coherence, or does it instead destroy the long-term curation and expertise that the institution has built in Antwerp?

📚 Click the link in our bio to read the full article by Alexandra Kharchenko. 

https://itsartlaw.org/art-law/flemish-governments-plan-to-dismantle-m-hkas-collection-in-the-name-of-centralization-of-art/ 

#centerforartlaw #artlaw #legal #artlawyer #legalresearch #artcuration #MHKA #artcuration
Thank you to all of our sponsors for all of their Thank you to all of our sponsors for all of their help in executing our 2026 Art Law Conference!!

#centerforartlaw #artlaw #legalresearch #2026annualconference #2026 #auction #nonprofit
  • About the Center
  • Contact Us
  • Newsletter
  • Upcoming Events
  • Internship
  • Case Law Database
  • Log in
  • Become a Member
  • Donate
DISCLAIMER

Center for Art Law is a New York State non-profit fully qualified under provision 501(c)(3)
of the Internal Revenue Code.

The Center does not provide legal representation. Information available on this website is
purely for educational purposes only and should not be construed as legal advice.

TERMS OF USE AND PRIVACY POLICY

Your use of the Site (as defined below) constitutes your consent to this Agreement. Please
read our Terms of Use and Privacy Policy carefully.

© 2026 Center for Art Law