- Born on June 3, 1743 in Kassel
- Deceased on February 27, 1821, at the age of 77 years
Parents
- Friedrich von Hessen-Kassel (1720 - 1785), Landgraf von Hessen-Kassel, membre de l'Académie des inscriptions et belles-lettres
- Mary von Hannover (1723 - 1772), Princess of Great Britain, régente du comté de Hanau
Family
- Married on September 1, 1764, with Caroline von Oldenburg (1747 - 1820), Prinsesse af Danmark, issuing
Marie Friederike (1768 - 1839)- Karoline (1771 - 1848)
- Wilhelm (1777 - 1847)