Provenance research commissioned by the university has found that-while the work was once owned by the legendary collector-it was not looted by the Nazis

Another court will have to uncover how the 271 works were stolen and by whom before being received by Pierre and Danielle Le Guennec

London art dealer Matthew Green embroiled in case that involves attempted sale of a painting to an undercover agent to 'clean up' £6.7m, court documents state

Others, including the Italian artist Maurizio Cattelan, support Christoph Büchel’s proposal to turn the eight designs into national monuments

A 2008 amendment to the Foreign Sovereign Immunities Act does not open a foreign nation's assets to claimants, the justices unanimously decided

Data privacy is getting a long-overdue overhaul with GDPR, but is the art market ready?

The controversial figure has gone on hunger strike in protest at “lack of transparency” over legal process

The developer’s destruction of their legally protected art was “an act of pure pique and revenge”, the court found

The Swiss freeport magnate has been charged with fraud after the Russian collector Dmitri Rybolovlev filed a new criminal complaint in Switzerland

The court dismissed a claim on the painting by the heir of the Jewish collector who sold it to fund an escape from the Nazis

The social media giant has argued for dismissal, saying the plaintiff should have sued its European web host

The decision adds another wrinkle to the unsettled case law surrounding liability in art fraud

Chowaiki & Co has imploded, but it is just the latest in a long line of art scams

The company still owes more than 1,700 objects as part of a $3m settlement with the US government

Flaky winning bids are knocking the gloss off record-breaking sales

Order could pave way for Russian billionaire to launch High Court case against Swiss dealer Yves Bouvier and Sotheby’s

Vienna’s Weltmuseum criticised for displaying a trophy head

Multiple lawsuits launched in the wake of Trump’s decision to shrink national parks in Utah

After a jury decided in favour of the street artists who sued over the destruction of their work, a Brooklyn federal judge is now considering the closely watched case

While the former Artforum publisher Knight Landesman moves to dismiss a lawsuit filed against him

Three quarters of known incidents go unchallenged according to Arts Professional study

Victims of a 1997 suicide attack want to seize ancient Persian tablets from a Chicago museum to satisfy a $71m judgment in their favour

The objects are among $7.3m in assets prosecutors are seeking from the jailed “pharma-bro”, who was convicted of securities fraud and conspiracy

Campaign for institutions to free up photographs of out-of-copyright works is backed by legal experts

GOP proposal could result in fewer gifts to museums and less art on the market

Sportswear company accepts it infringed trademark with trainers distributed during Art Basel in Miami Beach 2016

Photographer Gianfranco Gorgoni says copies of his pictures of the California land art project were shown and reproduced without his knowledge

He denies money laundering charges, saying non-profit organisation is audited and operates independently from his companies