Who dated Christian Ludwig von Kaphengst?

Prince Frederick Henry Ludwig of Prussia (German: Friedrich Heinrich Ludwig; 18 January 1726 – 3 August 1802) was a Prussian general, statesman, and diplomat. He was a son of King Frederick William I of Prussia and Princess Sophia Dorothea of Hanover, and the younger brother of Frederick the Great. Prince Henry led Prussian armies in the Silesian Wars and the Seven Years' War, having never lost a battle in the latter. In 1786, he was suggested as a candidate to be a monarch in the United States.