"Albertine Agnes of Nassau (April 9, 1634 – May 26, 1696), was regent of Friesland, Groningen and Drenthe during the minority of her son Henry Casimir ...
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II, Count of Nassau-Dietz. She was the sixth child and fifth daughter of stadtholder Frederick Henry, Prince of Orange and Amalia of Solms-Braunfels." - (en.wikipedia.org 29.01.2020)