In our tiny little village of 2000 people, we have 4 small castles (chateaux). Next one also has some. So does next one.
Its fine if its not exhaustive list. All major I could think of in few european countries I could find with all info correctly. Thank you for this effort, much appreciated.
I hope I don't get into hot water here, but (without knowing the buildings you are referring to) one person's large villa/mansion can be another person's small chateau, so I'd argue that probably not all small chateaux have to be included :)