He was born in 1665 in Stade, Germany. He was a member of a noble Swedish family. Königsmarck was the grandson to the Swedish Field Marshal Hans Christoff von Königsmarck. He was the son of Count Kurt Christoph von Königsmarck (1634-1673).
After wandering and-fighting in various parts of Europe he entered the service of Ernest Augustus, elector of Hanover. Here he made the acquaintance of Sophia Dorothea, and assisted her in one or two futile attempts to escape from Hanover. Regarded, rightly or wrongly, as the lover of the princess, he was seized, and disappeared from history, probably by assassination, on the 16t of July 1694. One authority states that George I was accustomed to boast about this deed; but this statement is doubted, and the Hanoverian court resolutely opposed all efforts to clear up the mystery.
It is not absolutely certain that Sophia Dorothea was guilty of a criminal intrigue with Konigsmark, as it is probable that the letters which purport to have passed between the pair are forgeries. The question of her guilt or innocence, however, has been and still remains a fruitful and popular subject for romance and speculation.
Born on the 14th of March 1665, Konigsmark was a brother of the countess noticed above.
