​KASTEEL OOIDONK

Where: Sint-Maria-Leerne, Belgium

Start of construction: 12th Century

End of construction: 19th Century

Most important renovation: 1870

Accessible: yes, interior with guide only

Important fact:

The castle was built around 1595 on the remains of a destroyed fort. During the renovation of 1870, for the most part the interior of the castle was overhauled.

http://ooidonk.be/en/