Two galleries in Britain have been asked to return paintings by the famed German artist Albrecht Dürer.
The Barber Institute of Fine Arts and the Courtauld Institute Gallery both own works by Dürer.
These paintings were looted from the Lubomirski museum in Lvov, Poland by the Nazis.
When the paintings were recovered in 1945, the Lubomirski family sold them privately.
After the war, Lvov became part of the Ukraine; now museums in Poland and the Ukraine claim that they should own the paintings.
The British galleries involved maintain that they bought the paintings in good faith and that their ownership is not in question.
