1749-1811 1800-1815 1845-1929 1919- 19thcentury 20thcentury arnold art arttreasuresinwar biography bode catholichighschoolstudents correspondence criticismandinterpretationcladders culturalproperty england florence gary germany history historydumbartonoaks historystaatlichemuseenzuberlin historywaltersartmuseum(baltimore italy johannes levey managementstädtischesmuseumabteibergmönchengladbach(germany) michael modern napoleonicwars preussischerkulturbesitz protection psychology puccini rüdlinger sources switzerland tommaso unitedstates viewsoncontemporaryartcladders vikan wilhelmvon