John William III, Duke of Saxe-Eisenach

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John William III
Johann Wilhelm von Sachsen-Eisenach.jpg
Duke of Saxe-Eisenach
PredecessorJohn George II
SuccessorWilhelm Heinrich
Born(1666-10-17)17 October 1666
Died14 January 1729(1729-01-14) (aged 62)
SpouseAmalie of Nassau-Dietz
Christine Juliane of Baden-Durlach
Magdalene Sibylle of Saxe-Weissenfels
Marie Christine Felizitas of Leiningen-Dagsburg-Falkenburg-Heidesheim
IssueWilhelm Heinrich
Princess Albertine Johannetta
Johannette, Duchess of Saxe-Weissenfels
Karoline, Landgravine of Hesse-Philippsthal
Prince Anton Gustav
Princess Charlotte Wilhelmine
Princess Johannetta Wilhelmine
Prince Karl Wilhelm
Prince Karl August
Princess Johanna Magdalene
Christiane, Princess of Nassau-Usingen
Prince Johann Wilhelm
HouseHouse of Wettin
FatherJohn George I, Duke of Saxe-Eisenach
MotherJohannetta of Sayn-Wittgenstein

John William III, Duke of Saxe-Eisenach (Friedewald, 17 October 1666 – Eisenach, 14 January 1729), was a duke of Saxe-Eisenach, and came from the Ernestine line of the house Wettin.


John William III was the third son of John George I, Duke of Saxe-Eisenach and Johannetta of Sayn-Wittgenstein. His twin brother, Maximilian, died at the age of two.

He succeeded his brother John George II as duke of Saxe-Eisenach when he died childless in 1698. John William III was crowned duke of Saxe-Eisenach.[1] Saxe-Eisenach experienced a cultural boon under his reign, which was in no small part due to the duke's court band, whose most prominent member was Georg Philipp Telemann.[2]


In Oranjewoud on 28 November 1690, John William married with Amalie (The Hague, 25 November 1655 – Allstedt, 16 February 1695), a daughter of William Frederick, Prince of Nassau-Dietz. They had two children:

  1. Wilhelm Heinrich, Duke of Saxe-Eisenach (b. Oranjewoud, 10 November 1691 – d. Eisenach, 26 July 1741).
  2. Albertine Johannetta (b. Oranjewoud, 28 February 1693 – d. Eisenach, 1 April 1700).

In Wolfenbüttel on 27 February 1697 — two years of the death of his first wife — John William married secondly with Christine Juliane of Baden-Durlach, a daughter of Charles Gustav of Baden-Durlach. They had seven children:

  1. Johannette Antoinette Juliane (b. Jena, 31 January 1698 – d. Schloss Dahme, 13 April 1726), married on 9 May 1721 to Duke Johann Adolf II of Saxe-Weissenfels.
  2. Karoline Christine (b. Jena, 15 April 1699 – d. Philippsthal, 25 July 1743), married on 24 November 1725 to Landgrave Charles I of Hesse-Philippsthal.
  3. Anton Gustav (b. Eisenach, 12 August 1700 – d. Eisenach, 4 October 1710).
  4. Charlotte Wilhelmine Juliane (b. Eisenach, 27 June 1703 – d. Erfurt, 17 August 1774).
  5. Johannetta Wilhelmine Juliane (b. Eisenach, 10 September 1704 – d. Eisenach, 3 January 1705).
  6. Karl Wilhelm (b. Eisenach, 9 January 1706 – d. Eisenach, 24 February 1706).
  7. Karl August (b. Eisenach, 10 June 1707 – d. Eisenach, 22 February 1711).

In Weissenfels on 28 July 1708 — one year after the death of his second wife — John William married thirdly with Magdalene Sibylle of Saxe-Weissenfels, a daughter of Johann Adolf I, Duke of Saxe-Weissenfels. They had three children:

  1. Johanna Magdalene Sophie (b. Eisenach, 19 August 1710 – d. Eisenach, 26 February 1711).
  2. Christiane Wilhelmine (b. Altenkirchen, 3 September 1711 – d. Idstein, 27 November 1740), married on 26 November 1734 to Prince Charles of Nassau-Usingen.
  3. Johann Wilhelm (b. Marksuhl, 28 January 1713 – d. Eisenach, 8 May 1713).

In the Schloss Philippsruhe on 29 May 1727 — one year after the death of his third wife — John William married fourthly with Marie Christine Felizitas of Leiningen-Dagsburg-Falkenburg-Heidesheim, Dowager Princess of Baden-Durlach. This union was childless.

John William III, Duke of Saxe-Eisenach
Born: 17 October 1666 Died: 14 January 1729
Preceded by
Johann Georg II
Duke of Saxe-Eisenach
Succeeded by
Wilhelm Heinrich


  1. ^ The Peerage Retrieved 5 June 2018. Missing or empty |title= (help)
  2. ^ "VD17".