About Princess Friederike of Schleswig-Holstein-Sonderburg-Glücksburg
Princess Friederike of Schleswig-Holstein-Sonderburg-Glücksburg (9 October 1811 – 10 July 1902) was a daughter of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and Princess Louise Caroline of Hesse-Kassel and an elder sister of Christian IX of Denmark.
Friederike became the Duchess of Anhalt-Bernburg upon her marriage to Alexander Karl, Duke of Anhalt-Bernburg, the last Duke of Anhalt-Bernburg.
She served as Regent of the Duchy from 1855 to 1863.