The town sisterhood with Cikó in Hungary came to be not the least because of this.
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After its line also died out, Hesse-Kassel (or Hesse-Cassel) and Hesse-Darmstadt then fought over the territory, with the latter under its own landgrave eventually winning out, taking the so-called Hinterland in 1648.
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This interregionally important road leads from eastern North Rhine-Westphalia (Siegen) through Middle Hesse (Dautphetal, Marburg) and East Hesse (Alsfeld, Bad Hersfeld) to Thuringia (Bad Salzungen) thereby fulfilling the function of interregional transportation axis.
The family Einloft is original of Hesse, of the region known as "Hessisches Hinterland", around the municipalities of Gönnern (Angelburg), Dautphetal and Biedenkopf.
In the north, Gladenbach borders on the community of Dautphetal, in the northeast on the town of Marburg, in the east on the community of Weimar, in the southeast on the community of Lohra (all in Marburg-Biedenkopf), in the southwest on the community of Bischoffen (Lahn-Dill-Kreis), and in the west on the community of Bad Endbach (Marburg-Biedenkopf).