(Hartenstein, Saxony, 1609–40, Hamburg), lyric poet, was at school in Leipzig and afterwards studied medicine there. In 1630 he met Opitz, whose work he admired, and his own writing was encouraged by Adam Olearius. Through Olearius he was invited to participate in a commercial expedition to Russia and Persia, sponsored by the Duke of Holstein-Gottorp, which in 1634 went as far as Moscow and then returned. Fleming spent a year in Reval waiting for the second stage of the expedition; he became engaged to Elsabe Niehus at this time. In 1636 he accompanied the expedition, which proved a commercial failure, to Ispahan, and returned in 1639. Elsabe Niehus had married another, and Fleming became engaged to her sister Anna. In 1639 he completed his medical studies at Leyden, but on his return journey to Reval, where he intended to take up an appointment as the city's medical officer (Stadtarzt), he fell ill and died in Hamburg.
From The Oxford Companion to German Literature in Oxford Reference.