John Ernst of Nassau-Weilburg
| John Ernst of Nassau-Weilburg | |
|---|---|
John Ernst of Nassau-Weilburg
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| Born |
13 June 1664 Weilburg |
| Died | 27 February 1719 (aged 54) Heidelberg |
| Noble family | Nassau |
| Spouse(s) | Maria Polyxena of Leiningen-Dagsburg-Hartenburg |
| Father | Frederick, Count of Nassau-Weilburg |
| Mother | Christiane Elisabeth of Sayn-Wittgenstein |
John Ernst of Nassau-Weilburg (Weilburg, 13 June 1664 – Heidelberg, 27 February 1719) was an Imperial Generalfeldmarschall, from 1675 to 1688 Count and from 1688 till his death Prince (Fürst) of Nassau-Weilburg.
John Ernst was the eldest son of Frederick, Count of Nassau-Weilburg (1640–1675) and Christiane Elisabeth of Sayn-Wittgenstein (1646–1678). After the death of his parents, his regents were John, Count of Nassau-Idstein and after his death, John Louis, Count of Nassau-Ottweiler.
In Juli 1679 John Ernst started his studies at the University of Tübingen. Between 1681 and 1682 he stayed at the court of King Louis XIV of France in the Palace of Versailles.
John Ernst became the only ruler of Nassau-Weilburg when his brother Frederick William Louis was killed in 1684 during the siege of Buda. His territories on the left bank of the Rhine were occupied by France and only returned after the Treaty of Ryswick in 1697.
John Ernst had an important military career. In 1684 he commanded a Dragoon regiment in the service of the Landgraviate of Hesse-Kassel. In 1688, at the start of the Nine Years' War, he defended Koblenz. Later he participated in the Siege of Mainz (1689), the Battle of Fleurus (1690) and the Battle of Landen (1693).
In September 1696 John Ernst entered as general in the service of the Electoral Palatinate as General, which enraged his former employer Charles I, Landgrave of Hesse-Kassel. After the Peace of Ryswick, John Ernst became governor of the Palatinate city of Düsseldorf.
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