To be privately owned
Königsklinger Aue Castle
Königsklinger Aue Castle is on a natural inland island in the Rhine River. This island, the Königsklinger Aue, is the largest of its kind between Mainz and Bingen.
History+
In 1575, the current Königsklinger Aue consisted of three smaller islands, which merged into a single, larger island due to natural sedimentation and Rhine corrections. Until the French Revolution, the island was owned by Eberbach Monastery. After secularization, the merchant Johann Maria Kertel acquired the Aue, which then became known as Kertelaue. Later, it passed into the possession of the Langwerth von Simmern family, before Salomon Marix, a silk merchant, acquired it and had the first manor house, the so-called Krimschlösschen, built in 1853.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: Jörg Heldt
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: 50.0214, 8.1281