Background
He was a son of Herman Reinhold Fleischer (1656–1712). His father died before he was born, but several of his uncles, including Baltzer Fleischer, had notable careers in Norway.
He was a son of Herman Reinhold Fleischer (1656–1712). His father died before he was born, but several of his uncles, including Baltzer Fleischer, had notable careers in Norway.
Christian Fleischer was thus a granduncle of Palle Rømer Fleischer. The family had roots in Elbing, East Prussia. He took education from 1730 to 1733, and was then hired as a private tutor for Count Ulrik Adolf Danneskjold-Samsøest
He would serve the Count in his later professional life.
He was a secretary and chief auditor in the naval administration in the 1740s. He headed the naval etat from 1767 (acting since 1763).
He also contributed in language studies. He wrote the piece Forsøg til Sprogets Forbedring i Henseende til enstydige og ubestemte Ord in the work Sorøske Samlinger, which he released in 1765 together with Gerstenberg and Kleen.
He also contributed to Schleswiger Litteraturbriefe in 1766 and 1767.
He also befriended Morten Thrane Brünnich, and a bird collection of Fleischer"s helped Brünnich write his Ornithologia Borealis in 1764. He died in March 1768.
In 1754 he became the only non-noble member of the Collegium of the Admiralty and Commissariat-General.