Louis, 14.vi.1753 in Prenzlau – 6.iv.1830 in Darmstadt:
Ruler: 1790-1830:
As Louis X, Landgrave of Hesse-Darmstadt: 6.iv.1790 – 14,viii.1806;
As Louis I, Grand Duke of Hesse and by Rhine: 14.viii.1806 – 6.iv.1830. :
Biography: https://en.wikipedia.org/wiki/Louis_I,_Grand_Duke_of_Hesse