A student of four years in Göttingen, he became a chamberlain in the service of Würzburg. In the 1760s he was a Court Marshal in Saxe-Gotha before in 1767 being called to the court of the Holy Roman Emperor, Joseph II, in Vienna. In 1772 he became president of the Imperial Chamber Court in Wetzlar.1
- 1Mader, Eric-Oliver. (2005) Die Letzen "Priester der Gerechtigkeit". p. 68
Boswell met Thüngen, then Court Marshal at the Court of Saxe-Gotha, in Gotha on October 17, 1764. Boswell found him "a sensible polite man".