FRANCE

SCHLOSS HÜLCHRATH

Where: Grevenbroich, Germany

Start of construction: 10th Century

End of construction: 17th Century.

Most important renovation: 20th Century

Accessible: no, although the castle can be rented for parties and events.

Important fact:

The castle also once had a high wall that was dismantled around 1688.

https://www.schloss-huelchrath.de/