Complex sentence: Baron Carl Fredrik Pechlin (8 August 1720--29 May 1796) was a Swedish politician and demagogue, son of the Holstein minister at Stockholm, Johan Pechlin, and brother of Johanna Lohm.
Split into simpler sentences: Baron Carl Fredrik Pechlin (8 August 1720--29 May 1796) was a Swedish politician and demagogue. He was son of the Holstein minister at Stockholm, Johan Pechlin, and brother of Johanna Lohm.