Frederick William was Elector of Brandenburg and Duke of Prussia, thus ruler of Brandenburg-Prussia, from 1640 until his death in 1688. A member of the House of Hohenzollern, he is popularly known as
Portrait by Frans Luycx, c. 1650
Portrait by Mathias Czwiczek, 1642
Portrait by Abraham and Gedeon Romandon, 1687–1688
Statue of Frederick William at Charlottenburg Palace, Berlin
Louise Henriette of Nassau was a Countess of Nassau, granddaughter of William I, Prince of Orange, "William the Silent", and an Electress of Brandenburg.
Frederick William, the Great Elector
…December 1646 in The Hague, Frederick William entered into a marriage, proposed by Blumenthal as a partial solution to the Jülich-Berg question, with Luise Henriette of Nassau (1627–1667), daughter of Frederick Henry of Orange-Nassau and Amalia of Solms-Braunfels and his 1st cousin once removed through William the Silent…
Portrait attributed to Johannes Mytens
Luise and her sisters
Oranienburg Palace
Luise Henriette of Nassau, 1643