Art historians

Otto Lehmann-Brockhaus

Cesare Brandi

Ulrich Middeldorf

John Pope-Hennessy

Lionello Venturi

Ernst Kitzinger

Stefano Tumidei

Fritz Heinemann

Werner Cohn

Wolfgang Lotz

Richard Krautheimer

Ellis Waterhouse

Luisa Vertova

Aby Warburg

Everett Fahy

Ernst Steinmann

Federico Zeri

Julian Kliemann

Gustav Ludwig

Roberto Longhi

Luigi Salerno

Eugenio Battisti

Giacinto Brandi

Adolfo Venturi

Kurt Badt

Julius S. Held

Kornél Fabriczy

Leo Steinberg