Did you mean: Adolph Siegfried von der Osten
Count Adolph Sigfried von der Osten was a Danish diplomat of German descent. His father was Jacob Frants von der Osten, whose family was Pomeranian. Adolph was born in Denmark and backed Danish nationalism. Wikipedia
Born: October 21, 1726
Died: May 2, 1797 (age 70 years), Copenhagen, Denmark
Parents: Jacob Frants von der Osten