Piaggi is specific to Pavia, Broni, Stradella, Casteggio and Cava Manara, Piaggio is Genoese with significant presences also in the province, Piagi, almost unique, would seem to be from the Cuneo area. additions provided by Stefano Ferrazzi The origin of these surnames is to be found in the medieval name Piaggio (phonetic variant of the more common Biagio), which, taken from the ancient Latin onomastics, literally means stutterer (see also Biagio and Blasio). In conclusion, therefore, these are the surnames of the personal names of the founders.
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