Scholar of the Italian Renaissance and modern art. Gosebruch's father, Ernst Gosebruch, was an art historian and Museum director in Essen at the time of his son's birth. The younger Gosebruch grew up with the paintings of the Brücke artists, Ernst Ludwig Kirchner, Eric Heckel and Karl Schmidt-Rottluff in the living room of the family home. The elder Gosebruch was dismissed as director of the Essener Museum Folkwang in 1933 by the Nazis. In 1938 Martin was conscripted to the Reich Labor Service (Arbeits-, Wehr-, Kriegsdienst Gefangenschaft).

Enlightenment dramatist, critic and art writer; author of one of the most important 18th-century analysis of a Greek sculpture. Lessing's father was a Lutheran clergy who educated his son personally during his early years. After Latin school in Kamenz, Lessing entered the school at St. Afra at Meissen at age twelve. He attended the University of Leipzig from 1746 to 1748 studying theology and the lectures in philology, archaeology and art of Johann Friedrich Christ and Johann August Ernesti (1707-1781).

Modernist art historian and leading reconstructionist figure in post-war German art museums. Reidemeister fought as a soldier in World War I in Germany. After his return in 1918, he studied architecture at the Technischen Hochschule in Braunschweig, moving the following year to the University of Berlin. To fund his studies, Reidemeister worked as an assistant in the Galerie Van Diemen, Berlin, where he came into contact with many of the artists, particularly Die Brücke artists of Expressionism.

Specialist in ancient Greek and Roman art, particularly noted for his studies of single statues like the Belvedere Apollo. Professor at the University of Innsbruck (1899-1905), Graz (1905-1907), Strasbourg (1907-1912) and Bonn (1912-1928).