Wilhelm Friedrich, Duke of Schleswig-Holstein

Wilhelm Friedrich
Duke of Schleswig-Holstein
Head of the House of Schleswig-Holstein
Tenure	21 January 1934 – 10 February 1965
Predecessor	Friedrich Ferdinand
Successor	Peter
Born	(1891-08-23)23 August 1891 Schleswig-Holstein, Prussia, German Empire
Died	10 February 1965(1965-02-10) (aged 73) Coburg, Bavaria, West Germany
Spouse	Princess Marie Melita of Hohenlohe-Langenburg ​ ​ (m. 1916)​
Issue	Hans Albrecht, Hereditary Prince of Schleswig-Holstein Prince Wilhelm Alfred Peter, Duke of Schleswig-Holstein Princess Marie Alexandra
Names William Frederick Christian Gunther Albert Adolf George German: Wilhelm Friedrich Christian Günther Albert Adolf Georg
House	Glücksburg
Father	Friedrich Ferdinand, Duke of Schleswig-Holstein
Mother	Princess Karoline Mathilde of Schleswig-Holstein-Sonderburg-Augustenburg

Wilhelm Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg, from 1934 Duke of Schleswig-Holstein (in German: Wilhelm Friedrich Christian Günther Albert Adolf Georg Prinz zu Schleswig-Holstein-Sonderburg-Glücksburg then Prinz zu Schleswig-Holstein; 23 August 1891 – 10 February 1965), was the sixth Duke of Schleswig-Holstein and Head of the House of Oldenburg from 21 January 1934 until his death on 10 February 1965.^{[citation needed]}

Prince Friedrich was born on 23 August 1891 at Grünholz Castle in Schleswig-Holstein, Kingdom of Prussia. He was the fifth child and only son of Frederick Ferdinand, Duke of Schleswig-Holstein-Sonderbug-Glücksburg and his wife, Princess Karoline Mathilde of Schleswig-Holstein-Sonderburg-Augustenburg.^{[citation needed]}

Prince Friedrich's father was the eldest son of Friedrich, Duke of Schleswig-Holstein-Sonderburg-Glücksburg and a nephew of Christian IX of Denmark. Upon the death of his father in 1885, he had succeeded to the headship of the House of Schleswig-Holstein-Sonderburg-Glücksburg and the title of duke.^{[citation needed]}

Friedrich married his second cousin, Princess Marie Melita of Hohenlohe-Langenburg, daughter of Ernst II, Prince of Hohenlohe-Langenburg and his wife Princess Alexandra of Saxe-Coburg and Gotha, on 5 February 1916 at Coburg. Friedrich and Marie Melita had four children.^{[citation needed]}

When the Head of the House of Schleswig-Holstein-Sonderburg-Augustenburg, Albert, Duke of Schleswig-Holstein, died on 27 April 1931, Friedrich's father Friedrich Ferdinand became the Head of the House of Oldenburg and inherited the title of Duke of Schleswig-Holstein.^{[citation needed]}

On 21 January 1934, Duke Friedrich Ferdinand died, and Friedrich became head of the House of Schleswig-Holstein-Sonderburg-Glücksburg.^{[citation needed]}

Duke Friedrich died on 10 February 1965 in Coburg, Bavaria, West Germany.^{[citation needed]}

• Hans Albrecht, Hereditary Prince of Schleswig-Holstein (12 May 1917 – 10 August 1944)
• Prince Wilhelm Alfred Ferdinand of Schleswig-Holstein-Sonderburg-Glücksburg (24 September 1919 – 17 June 1926)
• Friedrich Ernst Peter, seventh Duke of Schleswig-Holstein (30 April 1922 – 30 September 1980), married with Princess Marie Alix of Schaumburg-Lippe, and father of the late head of the House of Schleswig-Holstein, Christoph, Prince of Schleswig-Holstein
• Princess Marie Alexandra of Schleswig-Holstein-Sonderburg-Glücksburg (9 July 1927 – 14 December 2000), married on 27 July 1970 Douglas Barton-Miller (born 8 December 1929)