Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck

Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck (; 20 August 175724 April 1816) was the ninth and penultimate Duke of Schleswig-Holstein-Sonderburg-Beck. Friedrich Karl Ludwig was the son of Prince Karl Anton August of Schleswig-Holstein-Sonderburg-Beck and Countess Charlotte of Dohna-Schlodien.

Life Friedrich Karl Ludwig was born in Königsberg, Kingdom of Prussia. At the age of two he lost his father who died at the battle of Kundersdorf. He joined the Prussian Army in 1777 upon the request of King Frederick the Great. By 1781 he was a staff officer in the Regiment von Schlieben and by 1787 he commanded a grenadier battalion based in Königsberg.

Marriage and issue

Friedrich married Countess Friederike of Schlieben on 8 March 1780 in Königsberg. She was the second and youngest daughter of Count Karl Leopold of Schlieben and Countess Marie Eleonore von Lehndorff.

At the time, the marriage was not looked upon favorably by his family, because the Schlieben family, although a noble one, didn't belong to an exclusive circle of either reigning families or ancient noble families, which would be more acceptable. Friedrich and Friederike had three children:

Princess Friederike of Schleswig-Holstein-Sonderburg-Beck (13 December 1780 – 19 January 1862) ⚭ 1800 Gottlob Samuel von Richthofen, Baron von Richthofen (1769–1808) Princess Luise of Schleswig-Holstein-Sonderburg-Beck (28 September 1783 – 24 November 1803) ⚭ 1803 Frederick Ferdinand, Duke of Anhalt-Köthen Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg (4 January 1785 – 27 February 1831)

Friedrich was succeeded as duke by his son, Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg.

Ancestry