Johann Ernst von Sachsen-Saalfeld, Herzog von Sachsen-Saalfeld, was born 22 August 1658 in Gotha, Thuringia, Germany to Ernst I. von Sachsen-Gotha (1601-1675) and Elisabeth Sophia von Sachsen-Altenburg (1619-1680) and died 17 December 1729 Saalfeld, Thuringia, Germany of unspecified causes. He married Sophie Hedwig von Sachsen-Merseburg (1660-1686) 18 February 1680 in Merseburg, Saxony-Anhalt, Germany. He married Charlotte Johanna von Waldeck-Wildungen (1664-1699) 2 December 1690 in Maastricht, Limburg, Netherlands.
Children
| Name | Birth | Death | Joined with |
| Christiane Sophie von Sachsen-Saalfeld (1681-1697) | |||
| Christian Ernst von Sachsen-Coburg-Saalfeld (1683-1745) | |||
| Charlotte Wilhelmine von Sachsen-Saalfeld (1685-1767) | |||
| Name | Birth | Death | Joined with |
| Wilhelm Friedrich von Sachsen-Saalfeld (1691-1720) | |||
| Karl Ernst von Sachsen-Saalfeld (1692-1720) | |||
| Sofie Wilhelmine von Sachsen-Saalfeld (1693-1727) | 9 August 1693 Saalfeld, Thuringia, Germany | 4 December 1727 Rudolstadt, Thuringia, Germany | Friedrich Anton von Schwarzburg-Rudolstadt (1692-1744) |
| Henriette Albertine von Sachsen-Saalfeld (1694-1695) | |||
| Luise Emilie von Sachsen-Saalfeld (1695-1713) | |||
| Charlotte von Sachsen-Saalfeld (1696-1696) | |||
| Franz Josias von Sachsen-Coburg-Saalfeld (1697-1764) | 25 September 1697 Saalfeld, Thuringia, Germany | 16 September 1764 Bad Rodach, Bavaria, Germany | Anna Sophia von Schwarzburg-Rudolstadt (1700-1780) |
| Henriette Albertine von Sachsen-Saalfeld (1698-1728) | |||
Footnotes (including sources)
| ‡ General |
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