Biography
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
Life with Boswell
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".