Maybe you must harvest data from all the national Wikipedias, easier said than done. Example the page for https://it.wikipedia.org/wiki/Castello_di_Chignolo_Po

Maybe you must harvest data from all the national Wikipedias, easier said than done. Example the page for https://it.wikipedia.org/wiki/Castello_di_Chignolo_Po https://it.wikipedia.org/wiki/Castello_di_Chignolo_Po exists only in Italian and in the local dialect. I'm sure that there are plenty of castles like that around the world without an English page.