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Ludvig Fenger by Kittendorff Aagaard and Olsen. en Ludvig Peter Fenger Danish architect Municipal Architect of Copenhagen Royal Library Copenhagen Axel Kittendorff Johan Aagaard and Bernhard Olsen Ludvig Fenger Files from The Portrait Collection of the Danish Royal Library Engravings by Axel Kittendorff and Johan Aagaard PDold