Born 22 of April 1906 at Stockholm's Palace and was given the names Gustaf Adolf Oscar Fredrik Arthur Edmund. Parents: King Gustaf VI Adolf and Margareta of Great Britain and Ireland. Duke of Västerbotten. Died 26 of January 1947 in a plane crash at Kastrup, Denmark.
Married XX of June 1932 to Sibylla of Sachsen-Coburg-Gotha (1908-1972), daughter of Karl Eduard, Duke of Sachsen-Coburg-Gotha, and Victoria Adelheid of Schleswig-Holstein-Sonderburg-Glücksburg. Children: Margaretha Désirée Victoria (b 1934), Birgitta Ingeborg Alice (b 1937) Désirée Elisabeth Sibylla (b 1938), Christina Louise Helena (b 1941), Carl XVI Gustaf.