Countess Albertine Agnes of Nassau (d. 1696)
Albertine Agnes of Nassau (April 9, 1634 – May 26, 1696), was the regent of Friesland, Groningen and Drenthe during the minority of her son Henry Casimir II, Count of Nassau-Dietz, between 1664 and 1679. She was the sixth child and fifth daughter of stadtholder Frederick Henry, Prince of Orange and Amalia of Solms-Braunfels.