|Charles of Hesse-Kassel dressing in The Order of The Elephant. Painter unknown. 18th Century.|
Prince Charles of Hesse-Kassel (19 December 1744 – 17 August 1836) was a cadet member of the house of Hesse-Kassel and a Danish general field marshal. Brought up with relatives at the Danish court, he spent most of his life in Denmark, serving as royal governor of the twin duchies of Schleswig-Holstein from 1769 to 1836.
In 1769, Prince Charles of Hesse was appointed royal Governor of the twin duchies of Schleswig and Holstein on behalf of the government of his brother-in-law, King Christian VII of Denmark and Norway. This is important because he would take arms in the Russo Swedish War in 1788-1790 - fighting in allegiance with Russia and Norway.