Brusaschi, practically unique, is typical of Villa Tirano (SO) and should derive from the toponym Brusio (GR) 5 kilometers from Villa Tirano and currently in Switzerland, Brusaschetto, very rare, and Brusasco, quite rare, seems to have two strains in the Alessandria area , and in the Turin area, derive from the toponyms Brusasco (TO) and Brusaschetto (AL). Clarifications provided by Giacomo Ganza / Villa di Tirano (SO)
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