CHÂTEAU de la ROCHE

Where: Saint-Priest-La-Roche, France

Start of construction: 13th Century

End of construction: 14th Century

Most important renovation: 19th/20th Century

Accessible: yes

Important facts:

former toll castle, which lies at the edge of the river Loire at high tide; and sometimes even floods.

https://www.lechateaudelaroche.fr/version-anglaise/