| Duke Ludwig of Württemberg | |
| House: | Württemberg |
| Father: | Frederick II Eugene, Duke of Württemberg |
| Mother: | Princess Friederike of Brandenburg-Schwedt |
| Birth Place: | Treptow Palace, Treptow an der Rega, Province of Pomerania, Kingdom of Prussia |
| Death Place: | Kirchheim unter Teck, Kingdom of Württemberg, German Confederation |
Duke Ludwig Friedrich Alexander of Württemberg (; 30 August 1756, in Treptow an der Rega20 September 1817, in Kirchheim unter Teck) was the second son of Frederick II Eugene, Duke of Württemberg (1732–1797) and Margravine Sophia Dorothea of Brandenburg-Schwedt (1736–1798). His elder brother was Frederick I, the first King of Württemberg, and his sister was the Russian Empress consort, Maria Feodorovna. Louis retained the pre-royal title of Duke.
Louis Frederick was a general in the cavalry. He was briefly a high ranking commander the Army of the Polish-Lithuanian Commonwealth appointed the commander of the Grand Duchy of Lithuania's army, but betrayed the Commonwealth, refusing to fight against Russian troops throughout the Polish–Russian War of 1792, while feigning illness. For his betrayal he was dismissed from his post, but never prosecuted.[1] His Polish wife, Duchess Maria, divorced him shortly afterward after his treason became public knowledge.
Between 1807 and 1810, Duke Louis employed the composer Carl Maria von Weber as his secretary with no musical duties. Weber and the duke's older brother Frederick mutually disliked each other, and the composer was banished from Württemberg after accusations of misappropriating some of the duke's money.
He married on 28 October 1784 Princess Maria Czartoryska (1768–1854), daughter of Prince Adam Kazimierz Czartoryski and his wife, Countess Isabella von Flemming. They had one child before they divorced in 1793 (Maria initiated the divorce upon the news of his betrayal of Poland):
On 28 January 1797 in, near Bayreuth, Louis Frederick was married to Princess Henriette of Nassau-Weilburg (then of Nassau), daughter of Charles Christian, Duke of Nassau-Weilburg and Princess Carolina of Orange-Nassau. The couple had five children: