JERUSALEM — Israel’s national museum has located the heir of the owner of a valuable impressionist painting that was stolen by the Nazis after a photo was discovered showing the work in the original owner’s home, the museum said Wednesday.

Israel Museum spokeswoman Dena Scher said the museum purchased the “Garden in Wannsee” painting by the German-Jewish artist Max Liebermann from the owner’s heir after ownership was established. The painting is already on display in the museum and will stay there.

The painting’s original owner, Max Cassirer, was a wealthy Berlin businessman from a family of art dealers. The impressionist painting, which depicts the garden of the artist’s summer residence, was confiscated by the Nazis in 1941 together with Cassirer’s other assets. After the war, it was given to a Jewish restitution organization and found its way to Israel....