Complex sentence: Heinrich Christian Boie (July 19,1744-March 3,1806), German author, was born at Meldorf in Holstein (at the time a part of the Danish monarchy).
Split into simpler sentences: Heinrich Christian Boie (July 19,1744-March 3,1806), was a German author. He was born at Meldorf in Holstein (at the time a part of the Danish monarchy).