Johann Adolf I, Duke of Saxe-Weissenfels

Johann Adolf I, Duke of Saxe-Weissenfels (2 November 1649 – 24 May 1697), was a duke of Saxe-Weissenfels-Querfurt and member of the House of Wettin after succeeding his father August, Duke of Saxe-Weissenfels.

First marriage
In Altenburg on 25 October 1671, Johann Adolf married Princess Johanna Magdalena of Saxe-Altenburg and had children.

Children
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 * 1) Princess Magdalene Sibylle of Saxe-Weissenfels (3 September 1673 – 28 November 1726), married Johann Wilhelm III, Duke of Saxe-Eisenach.
 * 2) Prince August Friedrich of Saxe-Weissenfels (15 September 1674 – 16 August 1675).
 * 3) Prince Johann Adolf of Saxe-Weissenfels (7 June 1676 – 18 June 1676)
 * 4) Johann Georg, Duke of Saxe-Weissenfels (13 July 1677 – 16 March 1712)
 * 5) Stillborn son (24 July 1678)
 * 6) Johanna Wilhelmine of Saxe-Weissenfels (20 January 1680 – 4 July 1730).
 * 7) Friedrich Wilhelm of Saxe-Weissenfels (18 January 1681 – 20 November 1681).
 * 8) Christian, Duke of Saxe-Weissenfels (23 February 1682 – 28 June 1736).
 * 9) Princess Anna Marie of Saxe-Weissenfels (17 June 1683 – 16 March 1731), married Count Erdmann II of Promnitz.
 * 10) Sophie of Saxe-Weissenfels (2 August 1684 – 6 May 1752) married Georg Wilhelm, Margrave of Brandenburg-Bayreuth, and then Joseph Albert, Count of Hoditz and Wolframitz.
 * 11) Johann Adolf II, Duke of Saxe-Weissenfels (4 September 1685 – 16 May 1746)

Second marriage
Efter the daith o his wife in 1686, Johann Adolf married a second time in Querfurt on 3 February 1692 to Christiane Wilhelmine of Bünau. This marriage was morganatic and only made by contract; the completion of the marriage in the presence of a clergyman was left to his discretion. Johann Adolf give her 6,000 Taler as Morgengabe with an annual income of 3,000 Taler and the use of Schloss Dahme for her residence as dower. He admonished his sons to show her due respect, an should any issue come from this marriage he would make further divisions over the family lands. After five years of marriage, Christiane Wilhelmine was created Imperial Countess (Reichgräfin) in 1697 at the request of her husband. They had no children.