Wilhelm Reinhold Walter Koehler (Köhler until 1932) (17 December 1884 – 3 November 1959) was a Germanart historian. He was a professor at the University of Jena from 1924, but moved to Harvard University in 1932 as a result of clashes with the Nazi government. Named to the William Dorr Boardman Professor of Fine Arts in 1950, he retired in 1953.
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