"Carl Johann von Königsmarck (15 May 1659 – 28 August 1686) was a Swedish count of Brandenburgian extraction and a soldier.
Königsmarck was born in Nyborg in Funen, Denmark, as the second son of Count Conrad Christoph von Königsmarck and his wife Countess Maria Christina von Wrangel (1628-1691). He was the grandson of two Field Marshalls; Hermann von Wrangel and Hans Christoff von Königsmarck. His sister Maria Aurora von Königsmarck was later mistress to Augustus II the Strong of Poland, with whom she had the son Maurice de Saxe, the brilliant French military commander. His other sister Amalia Wilhelmina was a noted dilettante artist. His brother Philip Christoph von Königsmarck died under mysterious circumstances after starting an affair with Sophia Dorothea of Celle, the daughter of George William, Duke of Brunswick-Lüneburg." - (en.wikipedia.org 03.10.2020)
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