Every sentence in this article is completely wrong. I recommend to read the English or German article, which are both correct. Upper Hungary referred to present-day Slovakia only in the 19th century, even then in a very inofficial way. Earlier it referred to what is today Eastern Slovakia only and in the middle ages, the term virtually did not exist. Also, it is wrong to use modern Hungarian names for historical context, e.g. the name Pozsony occurs in the late 18th century for the first time in this form, i.e. it is wrong to use it for earlier periods; in addition Hungarian was not the official language in Hungary before the 1840s, official languages were Latin and German. (Sorry for not writing in Italian, but I would have to refresh my knowledge of the language to be able to write these things quickly).