More stringent regulations are posing provenance challenges and leading to legal battles

Despite legislative relaxation, little progress has been made in returning art stolen during the Second World War since the 1950s

The painting, purchased by the real estate magnate Bruno Stefanini in 1998, was once owned by a Jewish woman who fled Hitler’s Germany

The museum is investigating how the English-made jug turned up in West Africa before being seized during the 19th-century Anglo-Ashanti wars

The artefacts, dating from the third millenium BC, will remain in New York as Yemen’s civil war drags on

The dismissal of Michael Bennett, a curator at the Museum of Fine Arts in St Petersburg, came after colleagues at another institution raised flags about provenance gaps

The museum has responded to accusations that its collection includes looted artefacts by creating its largest research arm to date

The year-long grant will support three graduate students researching Nazi-confiscated cultural artefacts between 1933 and 1945

Jewel that gives its name to an 1892 Tahitian carving was added to the work years after the French artist’s death, researcher discovers

Plus, a horror show in London and a Flemish masterpiece in Bruges

The National Gallery of Art has carried out scientific tests on the works, finding fascinating discoveries beneath the paint

The late British artist envisioned that his collection would be acquired by the Ashmolean Museum, which rejected the offer due to provenance concerns

Collaborative research by major German institutions may expose huge amounts of Chinese objects taken during Boxer Rebellion

Kunstmuseum Bern announces results of in-depth provenance investigation of controversial 2014 bequest

The programme includes webinars examining dealers and collectors

The who, where and when of ownership can lead on to scholarly, ethical, legal and existential issues

New York-based Wildenstein-Plattner Institute will digitise fabled Wildenstein archive of sale catalogues, letters and experts’ notes

The database includes 9,000 catalogues from more than 390 auction houses in Germany, Austria and Switzerland