The legal tug-of-war centers on a two-panel work called “Adam” and “Eve.” The life-size paintings depicting the biblical characters were created around 1530 by German artist Lucas Cranach the Elder.

The Nazis stole the two paintings, and many others, from Jewish art dealer Jacques Goudstikker in Holland in 1940. After the war, the Dutch government sold these two works to a Russian aristocrat, who sold them to the Norton Simon in Pasadena in 1971.

“By pursuing the recovery of the Cranachs, we are seeking to reverse a great injustice perpetrated by the Nazi theft of a Jewish family’s property,” Rabbi Noah Farkas, president and CEO of Jewish Federation Los Angeles, said in a written statement.

The Federation is plaintiff in a lawsuit filed on Monday in L.A. Superior Court that names the museum and two related foundations as defendants. Cranach the Elder’s work has sold for millions of dollars.