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Prince Karl Anton August
Born	(1727-08-10)10 August 1727 Marburg, Hesse-Darmstadt
Died	12 September 1759(1759-09-12) (aged 32) Stettin, Pomerania, Prussia
Spouse	Countess Charlotte of Dohna-Schlodien
Issue	Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck
House	Schleswig-Holstein-Sonderburg-Beck
Father	Peter August, Duke of Schleswig-Holstein-Sonderburg-Beck
Mother	Sophie of Hesse-Philippsthal

Prince Karl Anton August of Schleswig-Holstein-Sonderburg-Beck (10 August 1727, in Marburg – 12 September 1759, in Stettin)^[1] was the son of Peter August, Duke of Schleswig-Holstein-Sonderburg-Beck and Princess Sophie of Hesse-Philippsthal.

Marriage and issue

On 30 May 1754, Anton (as he was known) married Countess Frederica Charlotte of Dohna-Schlodien in Leistenau (3 July 1738 – 21 April 1785) in Königsberg. The couple had one child, Friedrich Karl Ludwig, Duke of Schleswig-Holstein-Sonderburg-Beck (20 August 1757 – 24 April 1816).

Anton would have inherited the dukedom of Schleswig-Holstein-Sonderburg-Beck had it not been for his early death by wounds suffered at the Battle of Kunersdorf.^[2] His father Peter outlived him, so the dukedom was passed on from Peter to Anton's only son, Friedrich.