Johann Wilhelm, Duke of Saxe-Jena (28 March 1675 in
Jena
Jena (; ) is a List of cities and towns in Germany, city in Germany and the second largest city in Thuringia. Together with the nearby cities of Erfurt and Weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 in ...
– 4 November 1690 in
Jena
Jena (; ) is a List of cities and towns in Germany, city in Germany and the second largest city in Thuringia. Together with the nearby cities of Erfurt and Weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 in ...
), was a duke of Saxe-Jena.
He was the youngest but sole surviving son of
Bernhard II, Duke of Saxe-Jena
Bernhard II, Duke of Saxe-Jena (Weimar, 14 October 1638 – Jena, 3 May 1678), was duke of Saxe-Jena.
He was the seventh child but fourth surviving son of Wilhelm, Duke of Saxe-Weimar and Eleonore Dorothea of Anhalt-Dessau.
Bernhard attended ...
by his wife
Marie Charlotte, daughter of
Henry de La Trémoille, 3rd Duke of Thouars, 2nd Duke of La Tremoille, and Prince of Talmond and Taranto.
Life
When only three years old (1678) he succeeded his father as Duke of Saxe-Jena.
In accordance with the testamentary instructions of his father, his uncle, Duke
Johann Ernst II of Saxe-Weimar assumed his guardianship and the regency of the duchy; when he died in 1683, another uncle, Duke
Johann Georg I of Saxe-Eisenach, assumed the regency. Three years later (1686), the new regent also died, and his cousin (son of the late Duke Johann Ernst II) and brother-in-law (he was married to his eldest and only surviving sister,
Charlotte Marie) Duke
Wilhelm Ernst of Saxe-Weimar was appointed to the regency.
As Johann Wilhelm lived only fifteen years and failed to reach adulthood, he never governed. With his death the line of the Dukes of Saxe-Jena had become extinct, and the duchy was divided between
Saxe-Weimar
Saxe-Weimar () was one of the Saxon duchies held by the Ernestine branch of the Wettin dynasty in present-day Thuringia. The chief town and capital was Weimar. The Weimar branch was the most genealogically senior extant branch of the House of W ...
and
Saxe-Eisenach.
References
{{DEFAULTSORT:Johann Wilhelm Of Saxe-Jena, Duke
1675 births
1690 deaths
House of Wettin
Dukes of Saxe-Jena
17th-century German people
People of Byzantine descent
People from Jena
Monarchs who died as children