To be privately owned
CastleDoornenburg
Kasteel Doornenburg

Castle Doornenburg is a Dutch castle from the 13th century.
The castle is located in the eastern part of Gelderland, near the village of Doornenburg. It contains a front-castle and a main castle, which are connected through a small wooden bridge. It is one of the biggest and best preserved castles in the Netherlands.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: © BraCom (Bram)
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: 51.8937, 5.9989