Biography
Johann Adolf II. von Sachsen-Weißenfels, Herzog von Sachsen-Weißenfels, Fürst von Sachsen-Querfurt, was born 4 September 1685 in Weißenfels, Saxony-Anhalt, Germany to Johann Adolf I. von Sachsen-Weißenfels (1649-1697) and Johanna Magdalene von Sachsen-Altenburg (1656-1686) and died 16 May 1746 Leipzig, Saxony, Germany of heart attack. He married Johannetta Antoinetta Juliana von Sachsen-Eisenach (1698-1726) 9 May 1721 in Eisenach, Thuringia, Germany. He married Friederike von Sachsen-Gotha-Altenburg (1715-1775) 27 November 1734 in Altenburg, Thuringia, Germany.
He was the last member of the line of Sachsen-Weißenfels-Querfurt. After his death without surviving male issue, his lands passed to the Electorate of Saxony.
Children
| Name | Birth | Death | Joined with |
| Friedrich Johann Adolf von Sachsen-Weißenfels (1722-1724) | |||
| Name | Birth | Death | Joined with |
| Karl Friedrich Adolf von Sachsen-Weißenfels (1736-1737) | |||
| Johann Adolf von Sachsen-Weißenfels (1738-1738) | |||
| August Adolf von Sachsen-Weißenfels (1739-1740) | |||
| Johann Georg Adolf von Sachsen-Weißenfels (1740-1740) | |||
| Friederike Adolfine von Sachsen-Weißenfels (1741-1751) | |||
Footnotes (including sources)
| ‡ General |
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