Friedrich Wilhelm I. von Brandenburg, Kurfürst von Brandenburg, Markgraf von Brandenburg, Herzog von Preußen, was born 16 February 1620 in Berlin, Germany to Georg Wilhelm von Brandenburg (1595-1640) and Elisabeth Charlotte von der Pfalz (1597-1660) and died 9 May 1688 Potsdam, Brandenburg, Germany of unspecified causes. He married Louise Henriëtte van Nassau (1627-1667) 7 December 1646 in The Hague, Netherlands. He married Dorothea Sophie von Schleswig-Holstein-Sonderburg-Glücksburg (1636-1689) 14 June 1668 in Schloß Gröningen, Gröningen, Saxony-Anhalt, Germany.
Children
| Name | Birth | Death | Joined with |
| Wilhelm Heinrich von Brandenburg (1648-1649) | |||
| Karl Emil von Brandenburg (1655-1674) | |||
| Friedrich I. in Preußen (1657-1713) | 11 July 1657 Königsberg | 25 February 1713 Berlin, Germany | Elisabeth Henriette von Hessen-Kassel (1661-1683) Sophie Charlotte von Hannover (1668-1705) Sophie Luise von Mecklenburg-Schwerin (1685-1735) |
| Heinrich von Brandenburg (1664-1664) | |||
| Amalie von Brandenburg (1664-1665) | |||
| Ludwig von Brandenburg (1666-1687) | |||
Footnotes (including sources)
| ‡ General |
|
