**Louis De Geer Concert & Congress ** (Swedish:Louis de Geer konsert & kongress) is a concert hall and convention center located in Norrköping, Sweden. Aside from being the home of the Norrköping Symphony Orchestra, the facilities regularly house various conventions. It was named after Walloon-Dutch industrialist Louis De Geer (1587–1652). Louis De Geer came to Sweden in 1627 and settled in Norrköping. De Geer established a formidable workshop industry and received a monopoly on the copper and iron trade. The building that is now Louis De Geer Concert & Congress was first erected in 1954 as a paper mill. It was originally designed by architect Ivar Tengbom (1878–1968). Paper production ceased in 1986. The architects of the concert hall made a point of preserving the industrial character.

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