Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg (23 October 1814 – 27 November 1885) was the third Duke of Schleswig-Holstein-Sonderburg-Glücksburg. Friedrich was the second-eldest son of Friedrich Wilhelm, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and Princess Louise Caroline of Hesse-Kassel and the elder brother of Christian IX of Denmark. Friedrich inherited the title of Duke of Schleswig-Holstein-Sonderburg-Glücksburg upon his childless brother Karl's death on 14 October 1878.

Marriage and issue

Friedrich married Princess Adelheid of Schaumburg-Lippe, second-eldest daughter of George William, Prince of Schaumburg-Lippe and Princess Ida of Waldeck and Pyrmont, on 16 October 1841 in Bückeburg, Schaumburg-Lippe. Friedrich and Adelheid had five children:

Honours

Ancestry