Family/Spouse: Sophia Charlotte of Hanover. Sophia was born on 30 Oct 1668; died on 21 Jan 1705. [Group Sheet] [Family Chart]

1. Frederick august was born in 1685; died in 1686.
2. Frederick William I ( king of Prussia) was born on 14 Aug 1688 in Berlin, Brandenburg, Prussia, Germany; died on 31 May 1740 in Potsdam, Potsdam, Brandenburg, Germany.

Family/Spouse: Elisabeth Henriette, Landgravine of Hesse-Kassel. Elisabeth (daughter of WILLIAM VI "the Just" Landgrave of Hesse-Kassel and Hedwig Sofie von Brandenburg Margravine) was born on 8 Nov 1661 in Kassel, Hesse; died on 27 Jun 1683 in Spree, Saxony. [Group Sheet] [Family Chart]

1. Louise Dorothea was born in 1680.