Fredrik I. of Sweden

Born Friedrich Landgrave of Hesse-Kassel. Became prince consort of Sweden following his marriage to Princess Ulrika Eleonore of Sweden, later Queen regnant. Became King of Sweden as Frederik I. in 1720 when his wife abdicated in his favor. Also reigning Landgrave of Hesse-Kassel after the death of his father.

Son of Karl I. Landgrave of Hesse-Cassel (1654-1730) and his wife Amalia of Courland  (1653-1711)

Born: Kassel 8. May 1676

Married:

1. Berlin 31. May 1700 Luise Dorothea, Princess of Brandenburg (1680-1705)

2. Stockholm 24. Mar 1715 Ulrika Eleonora, Princess of Sweden, Queen regnant of Sweden 1719-1720 (1688-1741)

No legitimate issue

Illegitimate issue by Hedvig Taube (1714-1744):

• Frederika Vilhelmina, Greve von Hessenstein (1. Mar 1733 - 1734), Governor General of Pomerania
• Fredrik Vilhelm, Greve von Hessenstein (10. Mar 1735 – 27. Jul 1808)
• Karl Edvard von Hessenstein (26. Nov 1737 – 17. Apr 1769)
• Hedvig Amalia, Grevinna von Hessenstein (9. Dec 1748-6. May 1752)

Died: Stockholm 5. Apr 1751

Buried: Riddarholmen Church, Stockholm

Source: Detlev Schwennicke "Europäische Stammtafeln. Neue Folgen", Vol.II