Bad Karlshafen
The track was originally built by the Frederick William Northern Railway ("Friedrich-Wilhelms-Nordbahn-Gesellschaft", FWNG) as the "Carl Railway" (or "Charles Railway", ) from Kassel, the capital of the Electorate of Hesse ("Kurhessen"), to the port of Bad Karlshafen (then called "Carlshaven", German for "Port Charles", after Charles I, Hesse’s ruler from 1670 to 1730) on the left bank of the Weser, one of the northernmost places in the contiguous part of Kurhessen.