Frank Zollner

Frank Zöllner (born 26 June 1956) is a German art historian. He is among the leading authorities on the life and works of Leonardo da Vinci, about whom he has written numerous publications. These include book-length studies on the Mona Lisa and one of the two modern catalogues raisonnés of Leonardo's works, the other being by Pietro C. Marani.
He has been a professor of art history at Leipzig University since 1996.