The title survived from the times of the Holy Roman Empire (first recorded in Lower Lotharingia from 1086: Henry III, Count of Louvain, as landgrave of Brabant). By definition, a landgrave exercised sovereign rights. His decision-making power was comparable to that of a Duke.
Divided Hesse with his brother. Henry III the Rich: 15 October 1440: 1458–1483: 13 January 1483: Upper Hesse: Anna of Katzenelnbogen 1458 six children: Divided Hesse with his brother. Louis III the Younger: November 1461: 1474–1478: 2 July 1478: Upper Hesse: Unmarried: Ruled jointly with his father, but predeceased him. William I the Elder ...
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