Prince Frederick Henry Louis 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.
Issue. Frederick William II of Prussia (1744–1797) . married (1) Elisabeth Christine of Brunswick-Lüneburg.They had one child Princess Frederica Charlotte of Prussia (1767–1820), who married Prince Frederick, Duke of York and Albany, the second son of George III of the United Kingdom.