Aug 27, 2024
Loebl, Kleinberger and Sperling in NEPIP provenances in American Museums
Aug 26, 2024
DATASET: Art Institute of Chicago Provenance texts for artworks created before 1945 and acquired after 1932
Dataset Name: Enhanced AIC Provenance Research Dataset
Description: This enhanced Provenance dataset has been constructed from information available on the public internet site of the Art Institute of Chicago
The dataset focuses on artworks created before 1945 and acquired after 1932.
It merges the list of artworks on the Nazi Era Provenance Internet Portal with provenance texts published on the AIC's detailed item pages, as well as other artworks not on NEPIP.
Original data sources that were merged to create new dataset:
- Art Institute of Chicago NEPIP list 2017
- Provenance texts published on the Art Institute of Chicago's public website in August 2024
Aug 21, 2024
Art Market Network Analysis with Wikidata Sparql Queries and Beyond
What might replicable data pipeline from #Wikidata #KG Query to Data Frame to Network Visualisation of owners of artworks passing through a specific network look like?
— Open Art Data | @openartdata.bsky.social (@OpenLinkArtData) August 21, 2024
Perls Family Network-Red
Links to other owners-Blue
Jupyter Notebook in Google CoLabs
👉https://t.co/2oyU0kmuqi pic.twitter.com/UdQhY8ZKVp
What might replicable data pipeline from #Wikidata #KG Query to Data Frame to Network Visualisation of owners of artworks passing through a specific network look like?
In the example below, we look at 27 artworks that passed through one of the members of the Perls art dealing dynasty or one of their companies.
The starting point is a Wikdata Query to retrieve the artworks known to have been owned by one of the Perls family, as well as the other known owners of the same artworks.
The information is retrieved from Wikidata, loaded into a Data Frame, then visualised with MatPlotLib.
The code is saved in a Jupyter Notebook and Shared publicly via Google Colab.
Anyone with a Google Account should be able to run the code simply by clicking on the arrows to the left of each code cell.
Try it and let me know if it works.
https://colab.research.google.com/drive/1f7V2SMzxkCmt2lbCS3l4ulotqUGghNAm#scrollTo=0sPcg-gWZOo3
Perls Family Network-RedAug 19, 2024
Provenance patterns: visualising unreliability words in red
Jul 14, 2024
How solid is an art provenance text? Analysis of a Degas sculpture at the NGA
"Probably", "possibly", "apparently", "proposes" and "allegedly" in texts for Degas' Dancer Adjusting the Shoulder Strap of Her Bodice, original wax 1880s/1890s, cast 1920/1949 at the NGA
Jul 10, 2024
DATASET: Art Provenances AFTER Restitution of Looted Art
Claims for Nazi-looted art or duress sales sometimes result in restitution or settlement agreements which cause the restituted artwork to be sold at auction.
Below are artworks whose provenance, as published by Christie's auction house, mentions a restitution or settlement agreement with the heir of a victim of Nazi persecution.
These provenance texts provide valuable information to art historians and Holocaust researchers, offering insights into the art market networks that dealt in Holocaust-linked artworks between the time they left the possession of the persecuted Jewish collectors and the time they were restituted.
(original source of information: Christie's auction website)
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Dataset: CSV Download
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URL:
Jul 9, 2024
Erasing Jewish owners from provenance: Martha Liebermann
Martha Liebermann committed suicide the day before her planned deportation by the #Nazis to the Theresienstadt Ghetto
— Open Art Data | @openartdata.bsky.social (@OpenLinkArtData) July 9, 2024
Her heirs list this portrait of her daughter Käte by her husband Max on Lost Art.
You would not know this from the #NGA's #provenance.https://t.co/5JY2Clrb0b pic.twitter.com/q0xVQLhDkb
Jun 25, 2024
Graupe in provenance texts of American museums
The Paul Graupe auction house was a key player in sales of Jewish art collections during the Nazi-era.
In this post, we look at a selection of 88 artworks in American museums that mention "Graupe" in the provenance text.
Some texts refer to sales prior to 1933. Some texts specify that an artwork was NOT sold at Graupe's. And some texts clearly refer to sales at Graupe's during the Nazi era. Some texts are factual while others contain speculative language.
Jun 21, 2024
Provenances for Chagall at the Kunstmuseum Basel in Switzerland?
How are Swiss museums progressing on Nazi-era provenances?
A search for Marc Chagall at the Kunstmuseum Basel.
- Marc Chagall
- Öl auf Leinwand
- 87.4 x 64.4 cm
- Kunstmuseum Basel, mit einem Beitrag von Dr. h.c. Richard Doetsch-Benziger erworben 1950
- Inv. 2239
Provenienz
1926Alfred Flechtheim (1878–1937), Berlin (in Kommission?)
Datum unbekannt – ca. 1930Christoph Bernoulli (1897–1981), Basel
ca. 1930 – 1950Eduard Freiherr von der Heydt (1882–1964), Ascona, angekauft bei Christoph Bernoulli
1950 – heuteKunstmuseum Basel, angekauft bei Eduard von der Heydt
May 31, 2024
Reportedly found in - a sampling of interesting provenances
What does "reportedly found in" mean when it appears in a provenance text for an artworks or antiquity?
Below are a few sample texts.
(Texts published by museums are indicated by color.)
May 30, 2024
Erasing Jewish collectors' names from Nazi looted art: Alfred Weinberger
![]() |
Pierre-Auguste Renoir, Public domain, via Wikimedia Commons |
In 2009, Sotheby's put up for sale this Renoir entitled DEUX FEMMES DANS UN JARDIN with the following provenance.
PROVENANCE
Soutro Gallery, London
Sale: Christie's, London, June 24, 1997, lot 284
Private Collection (sold: Sotheby's, New York, November 3, 2005, lot 114)
Acquired at the above sale by the present owner
No mention of Alfred Weinberger, who had owned the Renoir until a Nazi looting organization seized it in Paris on December 4, 1941.
The above is one of the most typical provenance types that conceals Nazi-looted art.
May 29, 2024
Looted Art Detector: Custom Indicator File Art Traffickers
The list below contains the last names of antiquities trafficker who were investigated by the Manhattan DA, the FBI or other criminal investigators for their role in trafficking looted cultural heritage.
It is easy to check art provenances and references for names of known art traffickers and their networks using publicly available text analysis tools.
Below are several lists of words that can be useful, no matter what the tool (Voyant-Tools, Rstudio, Python, ChatGPT, Lootedart Detector, etc.)
See also: Looted Art Detector
and Using Custom Indicators
The list below contains the last names of antiquities trafficker who were investigated by the Manhattan DA, the FBI or other criminal investigators for their role in trafficking looted cultural heritage. To add your own words, simply copy or download the CSV and add your content and save as your own file.
word | type of flag |
Hecht | HeritageFlag |
Symes | HeritageFlag |
C. T. Loo | HeritageFlag |
Latchford | HeritageFlag |
Klejman | HeritageFlag |
Sperling | HeritageFlag |
Wiener | HeritageFlag |
Marion True | HeritageFlag |
Frel | HeritageFlag |
Becchina | HeritageFlag |
add your own names | HeritageFlag |
add your own names | HeritageFlag |
May 26, 2024
Phoenix Ancient Art: selected provenances
May 25, 2024
French government report 2022: The looting of works of art in France during the Occupation, organized, large-scale actions
Below is a translation into English of the following document:
Le pillage des oeuvres d'art en France pendant l'Occupation des actions organisées et de grande envergure
https://www.culture.gouv.fr/Media/Thematiques/Musees/MNR/Le-pillage-des-aeuvres-d-art-en-France-pendant-l-Occupation.pdf
May 19, 2024
Holocaust victims and refugees in art provenances
Museums and auction houses rarely mention that a name in a provenance of an artwork corresponds to a person who was robbed and murdered by the Nazis or a Jewish refugee fleeing to escape the Holocaust.
This Wikidata Sparql query displays a few of the art collector whose names are absolutely to be considered red flags in provenances because they either died in the Holocaust or were forced to flee to survive.
Wikidata query run 18 May 2024: Short link: https://w.wiki/A7pr
Table: Art Collectors and Dealers who died in the Holocaust or were forced to flee
May 9, 2024
Osthaus Museum Hagen restitutes Renoir "View of the Sea from Haut Cagnes" to heirs of Jakob Goldschmidt (1882-1955)

Jakob Goldschmidt (1882-1955) was one of the most important bankers of the Weimar Republic. Persecuted by the National Socialist regime, Goldschmidt fled Germany in the spring of 1933 and emigrated to the USA via Switzerland in 1936. His German citizenship was revoked in 1940 and his assets were confiscated the following year.
Goldschmidt's art collection was auctioned off on September 25, 1941 at the Hans W. Lange auction house in Berlin.
The Renoir painting Blick von Haut Cagnes aufs Meer (cat. no. 45) (View of the Sea from Haut Cagnes) was purchased by Hildegard Diehn, the wife of Wehrmacht officer Wilhelm Diehn. In 1960 the Renoir was at the Nathan Gallery in Zurich, where it was acquired by Prof. Gustav Stein from Cologne, a member of the Federation of German Industries. He passed the painting on to Fritz Berg, President of the South Westphalian Chamber of Industry and Commerce in Hagen in 1948 and the first BDI President from 1949. After the death of his widow, Hildegard Berg, the Berg art collection was transferred to the Osthaus Museum Hagen.
- source: press release from Osthaus Museum Hagen https://www.osthausmuseum.de/web/de/keom/presse/renoir2023.html
Apr 26, 2024
Koutoulakis in provenances
Where do artworks that passed through notorious looted antiquities trafficker Nicolas Koutoulakis pop up?
Dataset with Koutoulakis-linked items in the:
- J. Paul Getty Museum
- Metropolitan Museum of Art
- Museum of Fine Art Boston
- and others
DOWNLOAD
Apr 22, 2024
Minneapolis Institute of Art provenance status for selected artworks - mostly European
The Minneapolis Institute of Art publishes provenances for some artworks but not for others.
Below is a list of selected artworks at Artsmia.
Provenances, where present, are from April 20, 2024)
Download Data in CSV for research
Jan 16, 2024
Tracking Looted Art with Knowledge Graphs: A Wikidata Case Study
Art looting networks operate on many levels, many of them hidden, over long periods of time. The native graph function of Wikidata enhanced by federated queries can help track them.
Tracking Looted Art with Graphs
April 9, 2022, Laurel Zuckerman
Graphs and Networks in the Humanities 2022 Technologies, Models, Analyses, and Visualizations
6th International Conference, 3. – 4. February 2022, Online
The 6th international conference on Graphs and Networks in the Humanities took place from Thursday 3. February to Friday 4. February 2022 online, co-organized by scholars from the Huygens Institute (Royal Netherlands Academy of Arts and Sciences), the Academy of Sciences and Literature | Mainz, Vienna University, University of Leipzig, and the University Ca’ Foscari Venice
Paper: Tracking Looted Art with Graphs: A Case Study
See also:
The Error is the Message: Extracting Insights from Deceptive Data for Nazi looted art
VIDEO:
Oct 23, 2023
Contextual Information for Nazi-era Provenance Research - Wikidata Sparql Query
Holocaust victim, art looting Red Flag name, Nazi party member, or persecuted person?
Art historians, provenance researchers, museum curators, scholars of the Holocaust and the art market, If you would like to know whether a person in a provenance is a Holocaust victim, a looting Red Flag name, a Nazi party member, or a persecuted person, here is a Sparql query in Wikidata that can help:
https://w.wiki/7gg3
(collectors, dealers)
Clicking on the link above runs a Wikidata Sparql query.
The link below is more complete but runs slower...
https://w.wiki/8rbj
(collectors, dealers, curators, art historians)