Complex sentence: Johann Gottfried Seume (29 January 176313 June 1810), German author, was born at Poserna (now part of Lützen, Saxony-Anhalt).
Split into simpler sentences: Johann Gottfried Seume (29 January 176313 June 1810) was a German author. Seume was born in Poserna (now part of Lützen, Saxony-Anhalt).