Complex sentence: Jakob Ludwig Carl Grimm (also Karl) (Hanau, 4 January 1785--20 September 1863 in Berlin), German philologist, jurist and mythologist, was born at Hanau, in Hesse-Kassel (or Hesse-Cassel).
Split into simpler sentences: Jakob Ludwig Carl Grimm (also Karl; 4 January 1785--20 September 1863) was a German philologist, jurist and mythologist. Grimm was born in Hanau, in Hesse-Kassel (or Hesse-Cassel).