Historian, associate professor in the Department of Modern and Contemporary History of the University of Linz; since 2020 member of the Austrian Art Restitution Advisory Board and senior adviser of the Commission for Provenance Research at the Federal Ministry of Culture, Public Service and Sport; 2001–07 collaboration in Geraubte Kunst in Oberdonau (Looted Art in Upper Danube) research project; until 2013 freelance provenance research at the Oberösterreichisches Landesmuseum (Upper Austria Provincial Museum); exhibition curator (incl. Kulturhauptstadt des Führers (Führer's Capital of Culture), Schlossmuseum Linz 2008/09; Aphrodite: Eine Bestandsaufnahme (Aphrodite: An Inventory), Stadtmuseum NORDICO Linz 2018); 2017 habilitation with a monograph on artist (auto)biography in the context of Austrian politics and society in the early twentieth century.
The future jurist and art collector Walther Kastner was born in Gmunden in 1902 and grew up and attended school in Linz.