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How a Quiet Dutch Retiree Helped Uncover Nazi-Stolen Art in Argentina
FILE PHOTO: Curator Ariel Bassano addresses the media next to a portrait of Contessa Colleoni, attributed to Italian artist Giuseppe Ghislandi, an iconic painting stolen decades ago by the Nazis, following its recovery by Argentine officials after it was spotted in a real estate photo, in Mar del Plata, Argentina September 3, 2025. Photo: REUTERS/Jose Scalzo/File Photo
Dutch systems specialist Paul Post had glimpsed the notebooks that contained his father’s Nazi-era diaries before, but when he rediscovered them in an attic 15 years ago, the recent retiree finally had time to closely examine them.
Post, 74, had no idea that they would ultimately lead to Argentina, where in September the daughter of a high-ranking Nazi official was charged with concealing an 18th-century painting looted during the Holocaust.
In his diaries, Post’s father described working in the Netherlands’ diamond bureau when it was taken over by the Nazis. As Post began researching the events, one name jumped out: the Nazi official Friedrich Kadgien.
Kadgien oversaw the Nazi looting of diamonds and gold from occupied countries. Post began to follow Kadgien’s wanderings after the war, hoping to solve the mystery of the diamonds that historians say are still missing. He learned by chance that Kadgien was believed to have also possessed looted art.
The hunt led him and Dutch journalists to the peaceful residential neighborhood home of Patricia Kadgien, 60, in the seaside town of Mar del Plata in Buenos Aires province, where “Portrait of a Lady” had been hanging prominently in her living room. The reporters spotted it in a real estate listing in August.
Her attorney, Carlos Murias, told Reuters that she did not know about claims the painting had been looted from the collection of Jewish art dealer Jacques Goudstikker and she has denied having hidden it.
Nazi-related discoveries like this occasionally pop up in Argentina, which after the war received both Holocaust survivors and dozens of Nazi war criminals, including Adolf Eichmann and Josef Mengele. In February, President Javier Milei met with representatives of the Simon Wiesenthal Center, who asked for help accessing materials to investigate Nazi banking activities in Argentina. And last May, the Supreme Court announced it had found thousands of Nazi labor organization membership booklets in its basement archive.
Post’s unlikely role in the painting’s discovery underscores the complexities of finding Nazi-looted art today. An estimated 600,000 pieces were stolen from Jewish families, and more than 100,000 have never been returned.
“I’m just an amateur, I’m not a historian, nothing at all,” said Post. “I knew I was right on Kadgien.”
A FATHER’S WAR DIARIES RESURFACE
In 2010, Post’s family was cleaning out his mother’s house in Driehuis, a town just outside of Amsterdam. In the attic, they found three diaries written by his father, who died in 1976 at age 60.
In the diaries, Wim Post recounted how in 1942 the Nazis ordered the country’s diamond traders to turn over their precious stones, confiscating about 71,000 carats at the Amsterdam Diamond Exchange.
Paul Post, then recently retired from Hewlett-Packard, began visiting the Netherlands’ national archives to research the diamond confiscation. There he came across Kadgien’s name.
Shortly before Germany’s surrender in May 1945, Kadgien fled to Switzerland, where officials received a tip that he had carried out large transfers of diamonds, according to Regula Bochsler, a historian in Zurich. But in 1950, Kadgien received a visa to travel to Brazil, ultimately making his way to Buenos Aires.
Post reached out to the Dutch newspaper Algemeen Dagblad to share his father’s account of the diamond raid, and in 2015, investigative reporter Cyril Rosman published a piece about the diaries. Post later published “The Diamond Heist,” a book on the subject.
In 2020, Post noticed that the Cultural Heritage Agency of the Netherlands listed Kadgien online as possibly having possessed “Portrait of a Lady” by the Italian artist Giuseppe Ghislandi — although art historians have said the painter was likely his contemporary Giacomo Ceruti — as well as an Abraham Mignon still life. He met with the agency’s researcher Perry Schrier, and told him he had tracked Kadgien’s family to Mar del Plata. But Schrier, who confirmed he had met with Post, couldn’t help him.
“I said, ‘I think I know the location, where it could be, and that is in Argentina,’” recalled Post. “But he said, ‘Yeah, ok, it could be possible, but how can we know that it is on the wall in their homes?’”
In June 2024, Post contacted Yael Weitz, an attorney for Goudstikker’s family. In an email exchange seen by Reuters, he offered to provide leads on the two missing paintings if she could provide him with information on Kadgien. She ultimately said that her team didn’t have anything to share.
Post then turned to journalists again. Last April, he reached out to Rosman with more information on Kadgien’s post-war travels. They had tried to contact Kadgien’s daughters in Argentina through the years and Rosman asked Peter Schouten, a freelance journalist in Buenos Aires, to try again.
“We were not looking for the paintings in particular,” said Rosman. “At that time we were mostly thinking about the diamonds that were looted, so we wanted to know what happened to that.”
When Schouten rang the bell at Patricia Kadgien’s home in August, there was no answer. But he saw a for-sale sign in her yard. The reporters checked the real-estate listing and spotted the painting in one of the photos of the property. They could barely believe their luck.
“I thought, ok, is it really this simple, a picture that’s missing for 80 years is here above a couch in the living room?” said Rosman.
The day after they published a story on the painting’s discovery, police raided the home. But in the painting’s place was a tapestry of horses. Eight days later, Kadgien’s attorney handed the painting over to authorities.
Federal prosecutors have charged Patricia Kadgien, who runs a small clothing business, and her husband, Juan Carlos Cortegoso, a go-kart mechanic, with aggravated concealment and are investigating more than 20 drawings and prints, as well as two portraits, also seized from their home and from the home of Patricia’s sister in Mar del Plata.
“The attitude was to hide the painting,” the case’s prosecutor, Carlos Martinez, told Reuters. “We think that isn’t indicative of someone that doesn’t know what they have.”
COMPETING CLAIMS TO THE PAINTING
Goudstikker’s family have fought for decades to get his paintings back.
The art collector died when he fell into the hold of a boat as he was fleeing the advancing Nazis with his family in May 1940. But in a small black book, he had listed “Portrait of a Lady” along with more than 1,000 pieces in his collection.
In what historians describe as a forced sale after his death, top Nazi official Hermann Goering purchased about 800 of Goudstikker’s paintings. Weitz, the attorney who represents Goudstikker’s family, said that Goering’s associate, Alois Miedl, sold “Portrait of a Lady” to Kadgien in 1944.
The family has recovered 300 to 350 works of art, including 200 that had been mostly hanging in museums that the Netherlands agreed to return in 2006.
Charlene von Saher, Goudstikker’s granddaughter who lives in Greenwich, Connecticut, said her family informed the Kadgiens of their claim to “Portrait of a Lady” after the journalists published their story. Paolo Plebani, curator at the Accademia Carrara in Bergamo, said it is worth upwards of $100,000, but attorneys for the Goudstikker family said it is impossible to determine the value before examining the condition and confirming the artist’s identity.
“I just hope that they would be people who would feel like doing the right thing and correcting a historical injustice,” von Saher told Reuters, saying that the discovery was “like a movie.”
But Patricia Kadgien hasn’t relented. She has filed a claim in civil court that says her father’s sister-in-law bought the painting from the Wallraf-Richartz Museum in Cologne in 1943. It said the painting was “legitimately possessed” by her father and that she inherited it after he died. The museum told Reuters the painting was never part of its collection.
The claim said that she removed the painting from her home “for security reasons,” thinking she was the victim of “a virtual scam” when she started receiving calls from a journalist in August.
As for Post, he still wants to know what happened to the diamonds that were tied to Kadgien. Martinez, the prosecutor, said authorities did not find jewels of value or from the war-period in the Mar del Plata home.
Saskia Coenen Snyder, a Dutch professor of modern Jewish history at the University of South Carolina, said it is very hard to prove that Nazis took diamonds with them to South America. “I’ll give him credit for at least spending years of his time pursuing, uncovering stories and truths that not everybody wants to do or has been able to,” she said of Post. “He’s a bit of a pit bull.”
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Mamdani to attend Passover Seder as he navigates ties with Jewish groups amid rising antisemitism
New York City Mayor Zohran Mamdani is set to attend a Passover Seder on Monday night at the City Winery in Manhattan, stepping into a decades-old cultural tradition that doubles as a symbolic test of his relationship with the city’s Jewish community.
Mamdani is slated to appear alongside a liberal rabbi, an Israeli musician and an observant comedian at the annual Downtown Seder hosted by nightlife impresario and entrepreneur Michael Dorf. All net proceeds from the event will be donated to Seeds of Peace, a New York-based nonprofit founded in 1993 that helps young people from conflict regions build leadership skills and engage in dialogue.
Founded in 1991 and held at the East Village’s Knitting Factory and later at the Museum of Jewish Heritage, the Downtown Seder brings together artists, activists and public figures for a contemporary retelling of the Exodus story. Dorf, who is Jewish and launched City Winery in 2008, has described the gathering as a “supplement” to traditional seders. Passover begins Wednesday evening at sundown.
“The Seder is about asking urgent questions — about freedom, responsibility, and how we care for one another,” Dorf said in a statement. “Each year, we bring together voices who challenge, inspire, and reflect the world as it is — and as it could be.”
Featured guests this year include former CNN anchor Don Lemon, Israeli musician David Broza, and comedian Modi Rosenfeld. Former Mayor Eric Adams was the featured guest at the Seder in 2023.
A City Hall spokesperson said Mamdani will also host a private Passover dinner with city workers.
Mamdani’s participation at the Seder on Monday comes at a delicate political moment. A vocal critic of Israel who supports the boycott movement and has declined to recognize Israel specifically as a Jewish state, Mamdani has faced backlash from Zionist Jewish organizations, particularly after revoking executive orders tied to antisemitism and campus protests on his first day in office and his recent refusal to back legislation aimed at curbing disruptive protests outside synagogues and schools.
Reflecting his outreach efforts since taking office, his appearance at the Seder signals an ongoing effort to engage Jewish audiences drawn to themes of justice and coexistence and who are willing to be part of the conversation.
The event that Mamdani will speak at will also feature remarks from Rabbi Amichai Lau-Lavie, a rabbi and human rights activist, who will appear via video from Israel, according to the organizers.
Last week, Mamdani helped load cars with Passover food for Orthodox families at the annual Chasdei Lev distribution event in Brooklyn. He also met with Orthodox businessman Dov Bleich at his office, who showed him a Haggadah dating to the Civil War era in New York.
In his interview with the Forward last April, Mamdani framed the Exodus story as a call for collective liberation struggles. He invoked the biblical story of Moses confronting Pharaoh as a metaphor for present political challenges. “This moment with so many Pharaohs around us — whether they be Donald Trump, ICE or this troubling rise of antisemitism — we must take a lesson from those words of the necessity of not only having our lips not tremble or falter, but that the power in doing this comes in a shared belief in the possible,” Mamdani said. As a candidate, Mamdani attended a Seder hosted by Jews for Racial and Economic Justice.
Jewish politicians mark Passover amid rising antisemitism
Other politicians have also sought to mark Passover in ways that resonate with Jews grappling with rising antisemitism.
New York City Council Speaker Julie Menin co-hosted an interfaith Seder with the Jewish Community Relations Council on Thursday at Tsion Cafe, an Ethiopian Jewish restaurant in Harlem that closed earlier this year, after the owner faced ongoing harassment and vandalism since the Oct. 7 Hamas attack on Israel. “The story of Passover is a story of hope, perseverance, grit and determination for the Jewish community,” Menin said in her remarks. She added that it is symbolic that this year all the major religious holidays — Ramadan, Lent, Easter and Passover — have converged around the same time. “This is what our city needs more of — focused on unity and inclusion,” she said.
Some see Menin’s role as the Council’s first Jewish speaker as a counterweight to Mamdani on Jewish communal issues. On Thursday, the Council passed two bills that direct the NYPD to craft a plan within 45 days for managing protests around houses of worship and schools.
Illinois Gov. JB Pritzker hosted a Seder with Jewish leaders last week at his official residence. Last year, Pritzker, among a handful of Jewish politicians in leadership roles offering the Democratic Party a path forward ahead of the midterm elections, invoked his family’s history and his role in building the Illinois Holocaust Museum & Education Center to criticize President Donald Trump’s policies, comparing them to authoritarian tactics.
Pennsylvania Gov. Josh Shapiro is set to hold a family Seder at his official residence and will mark the first anniversary of the arson attack on the first night of Passover last year by an intruder, who said he wanted to beat the governor with a sledgehammer over what he claimed was a lack of empathy toward Palestinians. Shapiro has since leaned into his Jewish identity and has spoken out on bipartisan platforms about rising hate-fueled violence.
The post Mamdani to attend Passover Seder as he navigates ties with Jewish groups amid rising antisemitism appeared first on The Forward.
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IDF Soldier from Connecticut Killed in Southern Lebanon Combat
Sgt. Moshe Yitzhak Hacohen Katz. Photo: courtesy.
i24 News – The Israel Defense Forces announced on Sunday morning the death of Sgt. Moshe Yitzhak Hacohen Katz, 22, originally from New Haven, Connecticut, who was killed during combat operations in southern Lebanon on Saturday.
According to the military, Katz was killed in a rocket attack targeting Israeli forces operating during efforts to expand a security zone in southern Lebanon. The IDF said the strike occurred overnight between Friday and Saturday, during a large-scale barrage aimed at units deployed in the area.
An initial military investigation found that one rocket directly hit an infantry unit from the 890th Battalion of the Paratroopers Brigade, killing Katz instantly. Three additional soldiers were wounded and are listed in moderate condition.
The IDF said the announcement of Katz’s death was delayed to ensure that all family members, including those in the United States, were properly notified.
The army also said that recent attacks have largely focused on the four IDF divisions operating in Lebanon. In the past 24 hours alone, approximately 250 rockets were launched toward Israeli positions, with 23 crossing into Israeli territory, according to military figures.
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AI-Generated Antisemitic Rabbi Racks Up Millions of Followers with Questionable Financial Advice
i24 News – An AI-generated character known as Rabbi Goldman has attracted millions of followers online by combining old antisemitic tropes with digital-age conspiracy theories. The avatar, presented as a caricature of a New York rabbi, plays off stereotypes of Jewish power and wealth while dispensing unsolicited “financial advice” and conspiracy-laden commentary about global elites.
In his videos, Rabbi Goldman claims that Jews have “known every secret for thousands of years,” weaving age-old prejudice into modern misinformation. Among his assertions: that the moon landing was faked, the US government will soon exert total control over its citizens, and billionaires stage yacht sinkings for insurance fraud—all allegedly foreknown by “the Jews.”
Before being removed on Sunday night, his Instagram account had racked up over 1.5 million followers. Yet the same page remains active on Facebook, which shares an owner with Instagram, with roughly 180,000 followers and thousands of interactions per post. The comments reveal an audience that is genuinely engaged with, and emboldened by, his vitriolic rhetoric.
Rabbi Goldman’s videos follow a simple formula designed to thrive in algorithm-driven ecosystems. They begin with a cryptic slogan implying secret knowledge or hidden wealth — invoking Jews as the keepers of these secrets — to draw viewers in and extend watch time, thus being featured on more people’s feeds. What follows is a cascade of AI-generated, factually dubious monologues, all culminating in a pitch: he can show you how to acquire the same “Jewish wisdom.”
That pitch leads to his website, where a manual titled How to Make and Invest Money sells for $9, and he claims it has been purchased by over 4,000 people. The real product, however, carries a fuller title — How to Make and Invest Money Like the Jews. The 62-page PDF amounts to generic, AI-spun financial advice labeled as “the Jewish method,” occasionally interspersed with random references to the Talmud. Just like the videos, it references how Jews have managed to be successful for thousands of years but offers little backup as to how that can translate to a real-world scenario.
Most of it plays off the stereotype of Jews being financially astute. But some lines, such as “Jews do not day trade… We buy the market — the entire market — and we hold it indefinitely,” remove the mask entirely.
Whether we like it or not, antisemitism thrives online—and platforms’ recent loosening of content restrictions under the banner of “free speech” has only amplified it. Social media has become an ideal environment for grifters to blend prejudice with profit. And that is, to their credit, what the creators of Rabbi Goldman have done.
They have clearly borrowed from the “manosphere” playbook—a cluster of influencers promoting hyper-masculine, materialistic lifestyles infused with misogyny and antisemitism. Like Andrew Tate and similar figures, Rabbi Goldman appeals to disaffected young men who feel alienated by the economy and society in which they live, eager to locate a scapegoat.
In Goldman’s case, the scapegoats are the elites and billionaires. But the framing of the Jews alongside the elites has, by proxy, made them the scapegoat too. By merging coded hatred with generic Instagram-style self-help language, the character transforms antisemitism into a marketable aesthetic.
So essentially, the creator of Rabbi Goldman has found a niche in an emerging market, playing off of antisemitism to sell cheaply produced slop to teenagers. Which is both entrepreneurial and morally awful. But the issue is that social media has bred the ground for this by rewarding shock content and letting antisemitism often go untouched. Even when they deleted his Instagram account, dozens of copycats popped up, including an absurdly ironic German-language version that uses the likeness of British politician Jeremy Corbyn.
And this is what happens when social media companies are reactive rather than proactive. They were chasing shadows after the account became so big. Instead, they need to cut it out at its source, be tougher on antisemitism, and be more vigilant with AI content.
And for social media users, it is hard to tell what’s real and what isn’t anymore. Just try not to get financial advice from an AI rabbi who thinks the moon landing was fake.