The remains of the castle can be visited
Château de Lœwenstein

The Château de Lœwenstein, a medieval rock castle, stands at an elevation of approximately 524 meters near Wingen in the French Alsace.
History+
First documented in the 13th century, Lœwenstein Castle was initially an imperial fief held by Wolfram von Lœwenstein. In 1283, King Rudolf of Habsburg granted the castle to Johann Ochsenstein. Later, in 1380, the complex was divided and partially pledged to Johannes I. von Bitsch. Just three years later, in 1386, the castle was destroyed by Imperial Vicar Johann von Lichtenberg, a consequence of robber barony. It was likely not rebuilt.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://fr.wikipedia.org/wiki/Fichier:Loewenstein_%282%29.jpg
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 49.0534, 7.7865