A portrayal of Lot by Hans Baldung Grien was sold to the Gemäldegalerie in 1937 by Hans Purrmann

KW Institute exhibits works assembled by Francesco Conz, an Italian art collector and patron who entertained artists at his villa

Tender opened for guidance around repatriation questions for items including those acquired from former colonies

Two paintings by Signac and one by Pissarro are expected to fetch as much as £20m

Dealer Oscar Stettiner’s grandson says painting, now owned by David Nahmad, was looted by Nazis

Organiser of German fair describes cancellation as "regrettable"

Bronze sculpture gets new wings in a collaboration with Berlin’s Antikensammlung

Centre for Political Beauty concedes “mistakes,” says it will veil monument

Centre for Political Beauty says action targets conservatives open to allying with far right

Reappearance of a Josep Renau mural hints at a greater acceptance of East German public art

Saxon government acknowledges “years of disregard for their dignity and importance to their communities of origin”

She will take over the German institution following the controversial departure of Peter Schäfer last June

Work once belonged to the shoe manufacturer Alfred Hess, whose family was forced to flee Nazi Germany

After breaking in through a window at the Green Vault, the intruders grabbed three royal jewellery ensembles containing diamonds and pearls

Light Art Space wants visitors to understand the world through a computer’s eyes

Leo Bendel was killed at Buchenwald three years after he sold the painting by Carl Spitzweg to fund his escape from Nazi Germany

Show includes insights into preparations by the Indonesian art cooperative Ruangrupa for the 2022 edition

Our pick of highlights from the next fortnight's auctions and fairs

Collector Maria Chen-Tu says she had loaned works by Markus Lüpertz and Anselm Kiefer to a businessman to be shown in museums

Government says institute is necessary to address “considerable backlog in securing the visual memory of our society”

The gesture is intended as a symbol of France’s commitment to repatriating African heritage

Paid over four years, it will support efforts made by museums, grassroots-organisations and governments

The €364m budget is “a real pain threshold,” culture minister says

The property was once home to Paul Schultze-Naumburg, a leading proponent of Nazi cultural policy

National Museum of Western Art in Tokyo agrees to buy the painting, Ships at Sea in Stormy Weather

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

Gari Melchers's painting of a winter landscape, which was in the Arkell Museum in the state of New York, belonged to the media mogul Rudolf Mosse

Research project conducted by Alte Pinakothek reveals how the Flemish painter developed and reworked his canvases

A leading Italian art historian attributed it to Raphael and associates before the sale

Challenges include financial problems and a major planned renovation