Ahead of a court ruling on the return of a painting by impressionist master Camille Pissarro this week, here is some background.
The Nazis stole thousands of artworks from Jewish families during World War 2 and the restitution of these pieces has been a slow process involving legal battles, complex searches and some stunning finds.
Ahead of a court ruling on the return of a painting by impressionist master Camille Pissarro this week, here is some background.