Where: Rambures, France
Start of construction: 15th Century
End of construction: around 1470
Most important renovation: 18th Century
Accessible: yes, interior only with a guide
Important facts:
one of few French castles that were never destroyed. One of the very first French castles made out of bricks. Also, the castle is owned by the same family ever since its construction.
https://www.chateau-rambures-picardie.fr/