Gerhart B. Ladner
Gerhart B. Ladner (3 December 1905 – 21 September 1993) is a Canadian-Austrian art historian, medievalist, university teacher, and historian of ideas. He was born in Vienna. He died in Los Angeles.
His employers include University of Vienna. Awards received include Austrian Decoration for Science and Art, Guggenheim Fellowship, and Fellow of the Medieval Academy of America.