"Louis I, Grand Duke of Hesse (14 June 1753 in Prenzlau – 6 April 1830 in Darmstadt) was Landgrave of Hesse-Darmstadt (as Louis X) and later the first Grand Duke of Hesse and by Rhine." - (en.wikipedia.org 05.11.2019)
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(The left column lists the relations of this actor to objects in the right column. In the middle you find other actors in relation to the same objects.)