Ernestine Charlotte of Nassau-Schaumburg

Princess Ernestine Charlotte of Nassau-Schaumburg (20 May 1662Jul. – 21 February 1732), , official titles: Prinzessin von Nassau, Gräfin zu Katzenelnbogen, Vianden, Diez und Holzappel, Frau zu Beilstein, Laurenburg und Schaumburg, was a princess from the House of Nassau-Schaumburg, a cadet branch of the Ottonian Line of the House of Nassau and through marriage Fürstin of Nassau-Siegen. She was regent of the Principality of Nassau-Siegen (part of the County of Nassau) for her son Frederick William Adolf in the period 1691–1701.