Prince William of Hesse-Kassel was the first son of Prince Frederick of Hesse-Kassel and Princess Caroline of Nassau-Usingen. He was titular Landgrave of Hesse-Kassel-
and for many years heir presumptive to the throne of Hesse-Kassel. Wikipedia
Born: December 24, 1787, Biebrich, Wiesbaden, Germany
Died: September 5, 1867 (age 79 years), Copenhagen, Denmark
Great-grandparents: William VIII, Landgrave of Hesse-Kassel, George II of Great Britain, Caroline of Ansbach, and more
Grandchildren: Prince Frederick Charles of Hesse, Alexandra of Denmark, Frederick VIII of Denmark, and more
Great grandchildren: George V, Prince Christoph of Hesse, Nicholas II, and more