The Düsseldorf School of painting is a term referring to a group of painters who taught or studied at the Düsseldorf Academy (now the Staatliche Kunstakademie Düsseldorf or Düsseldorf State Art Academy) roughly between 1819 and 1918, first directed by the painter Wilhelm von Schadow.
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Düsseldorf School in the context of Andreas Achenbach
Andreas Achenbach (29 September 1815 – 1 April 1910) was a German landscape and seascape painter in the Romantic style. He is considered to be one of the founders of the Düsseldorf School. His brother, Oswald, was also a well known landscape painter. Together, based on their initials, they were known as the "Alpha and Omega" of landscape painters.
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