It’s hard to imagine anyone wanting to fight the return of artwork stolen from Jews during the Holocaust, even museum academics who have an interest in keeping the works in their collections. Not only does there seem to be a moral imperative to right these nearly century-old wrongs. On the face of it, such battles are simply bad public relations.

Yet the past decade has seen a series of high-profile, protracted restitution battles across the U.S. and Europe. The case of the so-called Gurlitt hoard, wherein more than 1,200 pieces of (mostly) stolen art was discovered in a Munich apartment in 2012, has yet to be fully resolved.