Biography
Karl von Nassau-Usingen, Fürst von Nassau-Usingen, was born 1 January 1712 in Usingen, Hesse, Germany to Wilhelm Heinrich von Nassau-Usingen (1684-1718) and Charlotte Amalie von Nassau-Dillenburg (1680-1738) and died 21 June 1775 Biebrich, Hesse, Germany of unspecified causes. He married Christiane Wilhelmine von Sachsen-Eisenach (1711-1740) 26 November 1734 in Eisenach, Thuringia, Germany. He married Magdalene Gross (1714-1787) .
Children
| Name | Birth | Death | Joined with |
| Karl Wilhelm von Nassau-Usingen (1735-1803) | 9 November 1735 Usingen, Hesse, Germany | 17 May 1803 Biebrich, Hesse, Germany | Karoline Felizitas von Leiningen-Dagsburg-Heidesheim (1734-1810) |
| Franziska von Nassau-Usingen (1736-1741) | |||
| Friedrich August von Nassau-Usingen (1738-1816) | |||
| Johann Adolf von Nassau-Usingen (1740-1793) | |||
| Name | Birth | Death | Joined with |
| Philippa Katharina von Biburg (1744-1798) | |||
| Karl Philipp von Biburg (1746-1789) | |||
| Sophie Christine von Biburg (1750-1750) | |||
| Wilhelm Heinrich von Biburg (1755-1755) | |||
Footnotes (including sources)
| ‡ General |
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