Background
Friedrich was the second-eldest son of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and Princess Louise Caroline of Hesse-Kassel and an elder brother of Christian IX of Denmark.
Friedrich was the second-eldest son of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and Princess Louise Caroline of Hesse-Kassel and an elder brother of Christian IX of Denmark.
Titles and styles 23 October 1814 – 6 July 1825: His Serene Highness Prince Friedrich of Schleswig-Holstein-Sonderburg-Beck 6 July 1825 – 19 December 1863: His Serene Highness Prince Friedrich of Schleswig-Holstein-Sonderburg-Glücksburg 19 December 1863 – 24 October 1878: His Highness Prince Friedrich of Schleswig-Holstein-Sonderburg-Glücksburg 24 October 1878 – 27 November 1885: His Highness The Duke of Schleswig-Holstein-Sonderburg-Glücksburg.