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Eugen Ritter von Zimmerer (24 November 1843 – 10 March 1918) was an attorney, prosecutor and judge in Bavaria before he entered the colonial service in 1887 when he was in his 40s. He served in German colonies of Kamerun and Togo before being appointed as governor of Kamerun, serving between 1890 and 1893. Following that, Zimmerer was assigned to posts in Brazil, Chile and Haiti before retiring and returning to Germany.