a town of Italy, in the duchy of Montferrat, with a bishop's see, and commodious baths. It was taken by the Spaniards in 1745; but after this, it was taken again and dismantled by the French, who afterwards forsook it. It is seated on the river Bormio, 25 miles N.W. of Genoa, and 30 S. of Casal. E. long. 8.30. lat. 44.40.