Where: Beaufort, Luxemburg

Start of construction: 12th Century

Most important renovation: 20th Century

Accessible: yes,

17th century castle only with guide

Important fact:

the complex consists of 2 castles. A medieval ruin and a 17th century castle in renaissance style. The 17th century castle is inhabited;

the partly renovated ruin can be visited with and without a guide since 1934.

https://beaufortcastles.com/nl/