• 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 AL Clippings image/svg+xml 2021 Timothée Giet Dispute over the Estate of Jack Tanzer Centers on Caravaggio Authentication
Back

Dispute over the Estate of Jack Tanzer Centers on Caravaggio Authentication

May 13, 2013

Caravaggio painting men sitting around the table

http://itsartlaw.org/wp-content/uploads/2013/05/04914-caravaggio.jpg

By Center for Art Law

The battle rages on over the estate of Jack Tanzer and the authenticity of a painting that the now-deceased Upper East Side gallery owner was convinced was the work of Renaissance master Michelangelo Merisi da Caraggio. The current dispute arises from the tireless work of Tanzer to authenticate a painting he acquired in 1983, which he was certain was the work of the 16th century painter, Caravaggio. His belief stemmed from the painting’s strong resemblance to “Supper At Erasmus,” one of the artist’s quintessential works that demonstrates his skill at depicting chiaroscuro, the balance of light and shadows. Yet, skeptics doubt Tanzer’s certainty, as the painting was not securely documented during his Caravaggio’s lifetime and the fact that it bears a signature, which Caravaggio rarely did.

Tanzer spent his final two decades trying to prove the work was authentic. After his death in 2005, his friend and fellow art dealer Warren Adelson was named executor of Tanzer’s estate. He also continued the quest to prove that the painting Tanzer purchased was the work of Caravaggio, of which Adelson owns a 25% share. However, after eight years and $500,000, Edward Tanzer, the dealer’s son, tried to draw the line. In 2011, Edward filed a petition in Manhattan Surrogate’s Court demanding Adelson’s removal as executor. In the petition, Tanzer stated, “The efforts and finances expended by Adelson to authenticate the painting have not been reasonable and have caused the continuing postponement of the distribution of the estate.” Namely, Tanzer is referring to Adelson’s failure to transfer a $485,000 Westchester county condominium that was left to Tanzer. Adelson responded to the filings, stating that he cannot transfer the condo, as the estate has outstanding debt. Adelson includes himself as a creditor, saying that the family owes him 75% of the $500,000 he spent on the painting’s authentication.

Last week, Tanzer made a subsequent filing, accusing Adelson of failing to provide an accounting of the estate assets as ordered by the court.

For his part, Adelson believes that the money spent will be worth it if the painting could be authenticated as a Caravaggio. He stated that “achieving such attribution of ownership will produce such substantial benefit to all persons interested that the expense will be more than justified.” Art historian Robert Simon described the painting as “a close version of one of the artist’s most celebrated canvases” and that it “is an impressive and imposing work and one that from all appearances would date from the beginning of the seventeenth century.” If the painting could be authenticated, the work would be worth tens of millions of dollars. Caravaggio paintings are rare and highly coveted. In 1987, one of his early paintings “The Card-Sharps,” sold for $15 million. However, until it can be authenticated, Simon estimated the painting’s current value at $800,000.

Source: DNAInfo New York

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 Five Art Market Lessons from Recent Case Law
Next Fair Use Fails Mr. Brainwash: Judicial Stance on Infringement and Appropriation Art Swings the Other Way

Related Art Law Articles

Authentication Sotheby's v Weiss Center for Art Law
Art lawauthenticity

On Duty of Auction Houses to Authenticate

December 2, 2025
(Early photograph of Banksy and “Laugh Now But One Day We’ll Be In Charge,” Banksy, via Steve Lazarides).
Art lawauthenticityBanksystreet art

The Real Banksy: Anonymity and Authenticity in the Art Market

December 3, 2023
What the Heck is Copyright (2)

What is Copy, Right?

2026 Annual Conference

Let’s explore Visual Art, AI, and the Law in the 21st Century together.

 

Reserve Your Ticket TODAY
Guidelines AI and Art Authentication

AI and Art Authentication

Explore the Guidelines for AI and Art Authentication for the responsible, ethical, and transparent use of artificial intelligence.

Download here
Center for Art Law

Follow us on Instagram for the latest in Art Law!

📍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) · 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
This is the final day to bid in our Annual Art Law This is the final day to bid in our Annual Art Law Conference 2026 Silent Auction to support the Center's mission to advance artists’ rights and provide accessible legal resources to the artistic community. All proceeds go directly toward the Center’s programs, including our Summer Internship and ongoing educational initiatives. 

Don't miss out on the amazing pieces  and experiences up for grabs!

 Biding will end May 27 at 5:30pm ET.

1st: Floragen 2.0.1 by Colleen Hoffenbacker 
2nd: Jumping Frog by Vija Doks 
3rd: Untiled no.11( Amy Hollywood) by Andre Pace 

🖼️ Follow the link in our bio to begin bidding! 

#centerforartlaw #artlaw #legalresearch #2026annualconference #2026 #auction #nonprofit
In 1935 Ernst Magnus was forced to sell "The Virgi In 1935 Ernst Magnus was forced to sell "The Virgin and Child with Saint Anne" and other works in order to escape the Nazi regime. In 1941 the painting was sold to Hermann Göring and was then recovered by the Allies at the close of World War II. By the 1960s the painting was held by the Bayerische Staatsgemäldesammlungen.

Originally restitution was rejected, but under expanded guidelines the Museum chose to restitute the piece  to Ernst Magnus' heirs. It is now set to be Auction by Sotheby's on June 2, 2026. The starting bid is listed at $28k and the estimated price between $40-60k.

🔗 Check out more about this work and it's provenance using the links in our bio!

#centerforartlaw #artlaw #artlawyer #lawyer #legalresearch #nazilootedart #artcrime #wwii #restitution
Make sure to check out our Annual Art Law Conferen Make sure to check out our Annual Art Law Conference 2026 Silent Auction to support the Center's mission to advance artists’ rights and provide accessible legal resources to the artistic community. All proceeds go directly toward the Center’s programs, including our Summer Internship and ongoing educational initiatives. 

 Biding will end on May 27 at 5:30pm ET.

🗽 Swipe to preview a selection of the consultations & experiences that will be available for purchase through the auction and follow the link in our bio to begin bidding! 

#centerforartlaw #artlaw #legalresearch #2026annualconference #2026 #auction #nonprofit
Historical examples of famous fakes and forgeries Historical examples of famous fakes and forgeries explain how technical skill is not the only factor that allow forgeries to flourish in the art market. Historical context — as illustrated by World War II-era cases — or, in the modern world, the lack of due diligence and risk assessment and failures of authentication, show how a combination of factors allows forgeries to flourish in particular contexts. 

From a legal perspective, fraud and forgeries are not the only issues complicating the operation of the art market. They are further amplified by related problems such as money laundering, fraud schemes, and theft. In this context, due diligence and authentication become even more critical considerations for buyers and sellers.

🔗 Click the link in our bio to read the complete article by Lauren Stein to get a deeper understanding of the vulnerabilities of the art market!

https://itsartlaw.org/art-law/when-imitation-is-not-flattery-art-fakes-forgeries-and-the-market-they-fool/ 

 #centerforartlaw #artlaw #legal #artlawyer #legalresearch #forgery #fraud #arttransparency
Don't miss out on our Annual Art Law Conference 20 Don't miss out on our Annual Art Law Conference 2026 silent auction to support the Center's mission to advance artists’ rights and provide accessible legal resources to the artistic community. All proceeds go directly toward the Center’s programs, including our Summer Internship and ongoing educational initiatives. 

 Biding will end on May 27 at 5:30pm ET.

📚 Swipe to preview a selection of the books that will be available for purchase through the auction and follow the link in our bio to begin bidding! 

#centerforartlaw #artlaw #legalresearch #2026annualconference #2026 #auction #nonprofit
Day 4 of ☀️school: from Brooklyn to Manhattan (and Day 4 of ☀️school: from Brooklyn to Manhattan (and back)
@brooklynmuseum @pacegallery
Running a nonprofit, art law or not, only looks gl Running a nonprofit, art law or not, only looks glamorous. Before our founder completes her metamorphosis from dewy-faced starlet to aging legend, consider supporting the Center by registering for our silent auction. Marion Davies photographs, artworks, books, and more await their next owners. 

Follow the link in our bio to begin bidding!
In last night's evening sale, Christie's successfu In last night's evening sale, Christie's successfully auction off Picasso's L'Atelier for $6.9 million. The painting was previously in art dealer Douglas Cooper's collection prior to it being stolen in 1974. It was later  found in Japan

The sale occurred as part of a settlement agreement reached between the current holder and the estate of Cooper's heir. Full title passed to the successful bider. 

🔗 Check out more information on the sale using the link in our bio!

#centerforartlaw #artlaw #legalresearch #artlawyer #lawyer #artcrime #picasso
  • 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