Descendants of Jewish couple Julius and Semaya Franziska Davidsohn were reunited with nine works of art on Monday, more than 80 years after the Nazis stole the paintings, casts and engravings, according to Deutsche Welle.

The return took place in a ceremony at the Bavarian National Museum in Munich, with Art Minister Bernd Sibler doing the honors. Sibler told regional broadcaster Bayerischer Rundfunk, "Despite the documented confiscation in 1938, it was very difficult to find the rightful heirs. Because of the Holocaust, there were no children, and then it was a question of who is entitled to inherit the art. These were difficult legal disputes."