"Johann Adam Ackermann (November 3, 1780 – March 27, 1853) was a German landscape painter of the early 19th century.
He was born in Mainz and moved to Frankfurt am Main in 1804. His best-known works are his winter landscapes and watercolours. He died in Frankfurt.
Johann Ackermann was the brother of Georg Friedrich Ackermann (1787, Mainz – 1843, Frankfurt am Main), who also painted landscapes but with less success." - (en.wikipedia.org 28.06.2022)
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