|Lucas Cranach the Elder's diptych "Adam" and "Eve"|
at the Norton Simon Museum in Pasadena, California
U. S. District Court Judge John F. Walter has written that the heirs are preempted by a foreign affairs doctrine. Judge Walter sits on the U. S. District Court for the Central District of California.
ARCA blog previously covered the background of this case and the paintings in the fall of 2010 here, here and here.