The remains of the Castle can be visited
Densberg Castle

In the Schwalm-Eder district in North Hesse is Densberg Castle Ruin, a former motte-and-bailey castle. Today, only a few remnants of walls are visible on the castle hill near the village church, surrounded by a neck ditch and ring wall. Its strategically important position made it a bone of contention between noble families for centuries.
History+
The first mention of the locality Densberg occurred in 1085 as property of the Archbishop Wezilo of Mainz. Around 1190, the castle was first mentioned as the seat of castellans from Mainz and Ziegenhain. In the 13th and 14th centuries, the castle was the scene of repeated conflicts between the Archbishopric of Mainz and the Landgraves of Hesse. As early as 1232, it was destroyed by Landgrave Konrad of Thuringia. After a reconstruction, Johann Gruszing von Falkenberg received permission in 1349 to build a new castle, which was, however, destroyed again by Hessian troops in 1350.
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Location: 50.9917, 9.0894