"Anna Eleonore of Stolberg-Wernigerode (26 March 1651 - 27 January 1690), was a German regent; Princess of Anhalt-Köthen by marriage to Emmanuel, Prince of Anhalt-Köthen, and ...
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regent of Anhalt-Köthen during the minority of her son from 1671 until 1690." - (Wikipedia (en) 28.05.2022)