Museum director and scholar of Romanesque and 19th-century German sculpture. Bloch was the son of a Berlin book publisher, Peter Bloch and mother Charlotte Streckenbach (Bloch). He attended the Gymnasium in Steglitz, graduating in 1943. Despite having a Jewish background, Bloch joined the German army. He was wounded in battle and taken as a prisoner of war, remaining in a Belgian POW camp (working in the mines) until 1948.
AAT