John William III, Duke of Saxe-Eisenach

Who was John William III, Duke of Saxe-Eisenach?

John William III, Duke of Saxe-Eisenach, was a duke of Saxe-Eisenach.

He 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 years.

He succeeded his brother John George II as duke of Saxe-Eisenach when his brother died in 1698.

In Oranjewoud on 28 November 1690, John William married with Amalie of Nassau-Dietz, who was eleven years older. She was a daughter of William Frederick, Prince of Nassau-Dietz. They had two children:

Wilhelm Heinrich, Duke of Saxe-Eisenach.

Albertine Johannetta.

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:

Johannette Antoinette Juliane, married on 9 May 1721 to Duke Johann Adolf II of Saxe-Weissenfels.

Karoline Christine, married on 24 November 1725 to Landgrave Charles I of Hesse-Philippsthal.