Hi
It is Latin so the country of origin is Italy. However, if you've got Gulielmi from a church record this won't help identify your ancestors country of origin as many historical church records were written in Latin as this was the language of religious education. Hope this helps.
Regards
Julie
It is Latin so the country of origin is Italy. However, if you've got Gulielmi from a church record this won't help identify your ancestors country of origin as many historical church records were written in Latin as this was the language of religious education. Hope this helps.
Regards
Julie