Spanish is a part of the Ibero-Romance group of languages, which evolved from several dialects of Vulgar Latin in Iberia after the collapse of the Western Roman Empire in the 5th century.
French or la langue française is a Romance language of the Indo-European family. It descended from the Vulgar Latin of the Roman Empire, as did all Romance languages.
Portuguese is part of the Ibero-Romance group that evolved from several dialects of Vulgar Latin
Italian is a Romance language. Italian is by most measures, together with the Sardinian language, the closest tongue to vulgar Latin of the Romance languages
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