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So, I'm aware that Porpino is a Brazilian variant of a surname that was previously spelled differently. The surname Porpino is only found in Brazil and the United States (via Brazilian immigration to the US). The Porpino surname first appeared in northeastern Brazil around the mid-nineteenth century. I've been theorizing that it might have originated with the immigration of two Italian brothers by the names of Giuseppe and Giovanni Porporino. The Porporino brothers left Italy for Brazil around the time of the unification of the Kingdom of Italy. Interestingly, the surname Porporino is not found in Brazil. The Porpino surname began appearing around the same time as the Porporino brothers had emigrated to Brazil. So, my hypothesis is that modern-day Porpinos must either be the descendants of one of these two brothers, but I have no evidence to support the link between Porporino and Porpino. I also read online that some genealogists claim that Porpino is actually a Brazilian corruption of a Hungarian surname, and not Italian. Although, they never revealed the Hungarian surname they claimed Porpino is derived from. Would anyone on here be able to help me discern the true origin of the Porpino surname?