 The town was probably founded in Roman times.In the Middle Ages it was a possession of the Bobbio Abbey, and then (1227) of the Malaspina and (mid-14th century) of the Fieschi, who built a castle here.Later it was under the Republic of Genoa, and Torriglia was involved in the wars between Guelphs and Ghibellines, causing its siege by the Genoese in 1432.